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

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

1 files changed, 259 insertions, 0 deletions

diff --git a/sql/sql_show.h b/sql/sql_show.h
new file mode 100644
index 00000000..3d7a4d11
--- /dev/null
+++ b/sql/sql_show.h
@@ -0,0 +1,259 @@
+/* Copyright (c) 2005, 2010, Oracle and/or its affiliates.
+   Copyright (c) 2012, 2016, MariaDB
+
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; version 2 of the License.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program; if not, write to the Free Software
+   Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1335  USA */
+
+#ifndef SQL_SHOW_H
+#define SQL_SHOW_H
+
+#include "sql_list.h"                           /* List */
+#include "handler.h"                            /* enum_schema_tables */
+#include "table.h"                              /* enum_schema_table_state */
+#include "my_apc.h"
+
+/* Forward declarations */
+class JOIN;
+class String;
+class THD;
+class sp_name;
+struct TABLE_LIST;
+typedef class st_select_lex SELECT_LEX;
+struct LEX;
+typedef struct st_mysql_show_var SHOW_VAR;
+typedef struct st_schema_table ST_SCHEMA_TABLE;
+struct TABLE;
+typedef struct system_status_var STATUS_VAR;
+
+/* Used by handlers to store things in schema tables */
+#define IS_FILES_FILE_ID              0
+#define IS_FILES_FILE_NAME            1
+#define IS_FILES_FILE_TYPE            2
+#define IS_FILES_TABLESPACE_NAME      3
+#define IS_FILES_TABLE_CATALOG        4
+#define IS_FILES_TABLE_SCHEMA         5
+#define IS_FILES_TABLE_NAME           6
+#define IS_FILES_LOGFILE_GROUP_NAME   7
+#define IS_FILES_LOGFILE_GROUP_NUMBER 8
+#define IS_FILES_ENGINE               9
+#define IS_FILES_FULLTEXT_KEYS       10
+#define IS_FILES_DELETED_ROWS        11
+#define IS_FILES_UPDATE_COUNT        12
+#define IS_FILES_FREE_EXTENTS        13
+#define IS_FILES_TOTAL_EXTENTS       14
+#define IS_FILES_EXTENT_SIZE         15
+#define IS_FILES_INITIAL_SIZE        16
+#define IS_FILES_MAXIMUM_SIZE        17
+#define IS_FILES_AUTOEXTEND_SIZE     18
+#define IS_FILES_CREATION_TIME       19
+#define IS_FILES_LAST_UPDATE_TIME    20
+#define IS_FILES_LAST_ACCESS_TIME    21
+#define IS_FILES_RECOVER_TIME        22
+#define IS_FILES_TRANSACTION_COUNTER 23
+#define IS_FILES_VERSION             24
+#define IS_FILES_ROW_FORMAT          25
+#define IS_FILES_TABLE_ROWS          26
+#define IS_FILES_AVG_ROW_LENGTH      27
+#define IS_FILES_DATA_LENGTH         28
+#define IS_FILES_MAX_DATA_LENGTH     29
+#define IS_FILES_INDEX_LENGTH        30
+#define IS_FILES_DATA_FREE           31
+#define IS_FILES_CREATE_TIME         32
+#define IS_FILES_UPDATE_TIME         33
+#define IS_FILES_CHECK_TIME          34
+#define IS_FILES_CHECKSUM            35
+#define IS_FILES_STATUS              36
+#define IS_FILES_EXTRA               37
+
+typedef enum { WITHOUT_DB_NAME, WITH_DB_NAME } enum_with_db_name;
+
+int get_all_tables(THD *thd, TABLE_LIST *tables, COND *cond);
+
+int show_create_table(THD *thd, TABLE_LIST *table_list, String *packet,
+                      Table_specification_st *create_info_arg,
+                      enum_with_db_name with_db_name);
+
+int show_create_table_ex(THD *thd, TABLE_LIST *table_list,
+                         const char * forced_db, const char *forced_name,
+                         String *packet,
+                         Table_specification_st *create_info_arg,
+                         enum_with_db_name with_db_name);
+
+int copy_event_to_schema_table(THD *thd, TABLE *sch_table, TABLE *event_table);
+
+bool append_identifier(THD *thd, String *packet, const char *name, size_t length);
+static inline bool append_identifier(THD *thd, String *packet, const LEX_CSTRING *name)
+{
+  return append_identifier(thd, packet, name->str, name->length);
+}
+void mysqld_list_fields(THD *thd,TABLE_LIST *table, const char *wild);
+int mysqld_dump_create_info(THD *thd, TABLE_LIST *table_list, int fd);
+bool mysqld_show_create_get_fields(THD *thd, TABLE_LIST *table_list,
+                                   List<Item> *field_list, String *buffer);
+bool mysqld_show_create(THD *thd, TABLE_LIST *table_list);
+void mysqld_show_create_db_get_fields(THD *thd, List<Item> *field_list);
+bool mysqld_show_create_db(THD *thd, LEX_CSTRING *db_name,
+                           LEX_CSTRING *orig_db_name,
+                           const DDL_options_st &options);
+
+void mysqld_list_processes(THD *thd,const char *user,bool verbose);
+int mysqld_show_status(THD *thd);
+int mysqld_show_variables(THD *thd,const char *wild);
+bool mysqld_show_storage_engines(THD *thd);
+bool mysqld_show_authors(THD *thd);
+bool mysqld_show_contributors(THD *thd);
+bool mysqld_show_privileges(THD *thd);
+char *make_backup_log_name(char *buff, const char *name, const char* log_ext);
+uint calc_sum_of_all_status(STATUS_VAR *to);
+bool append_definer(THD *thd, String *buffer, const LEX_CSTRING *definer_user,
+                    const LEX_CSTRING *definer_host);
+int add_status_vars(SHOW_VAR *list);
+void remove_status_vars(SHOW_VAR *list);
+ulonglong get_status_vars_version(void);
+void init_status_vars();
+void free_status_vars();
+void reset_status_vars();
+bool show_create_trigger(THD *thd, const sp_name *trg_name);
+void view_store_options(THD *thd, TABLE_LIST *table, String *buff);
+
+void init_fill_schema_files_row(TABLE* table);
+void initialize_information_schema_acl();
+
+ST_SCHEMA_TABLE *find_schema_table(THD *thd, const LEX_CSTRING *table_name,
+                                   bool *in_plugin);
+static inline ST_SCHEMA_TABLE *find_schema_table(THD *thd, const LEX_CSTRING *table_name)
+{ bool unused; return find_schema_table(thd, table_name, &unused); }
+
+ST_SCHEMA_TABLE *get_schema_table(enum enum_schema_tables schema_table_idx);
+int make_schema_select(THD *thd,  SELECT_LEX *sel,
+                       ST_SCHEMA_TABLE *schema_table);
+int mysql_schema_table(THD *thd, LEX *lex, TABLE_LIST *table_list);
+bool get_schema_tables_result(JOIN *join,
+                              enum enum_schema_table_state executed_place);
+enum enum_schema_tables get_schema_table_idx(ST_SCHEMA_TABLE *schema_table);
+TABLE *create_schema_table(THD *thd, TABLE_LIST *table_list);
+
+const char* get_one_variable(THD *thd, const SHOW_VAR *variable,
+                             enum_var_type value_type, SHOW_TYPE show_type,
+                             system_status_var *status_var,
+                             const CHARSET_INFO **charset, char *buff,
+                             size_t *length);
+
+/* These functions were under INNODB_COMPATIBILITY_HOOKS */
+int get_quote_char_for_identifier(THD *thd, const char *name, size_t length);
+THD *find_thread_by_id(longlong id, bool query_id= false);
+
+class select_result_explain_buffer;
+/*
+  SHOW EXPLAIN request object. 
+*/
+
+class Show_explain_request : public Apc_target::Apc_call
+{
+public:
+  THD *target_thd;  /* thd that we're running SHOW EXPLAIN for */
+  THD *request_thd; /* thd that run SHOW EXPLAIN command */
+  
+  /* If true, there was some error when producing EXPLAIN output. */
+  bool failed_to_produce;
+   
+  /* SHOW EXPLAIN will be stored here */
+  select_result_explain_buffer *explain_buf;
+  
+  /* Query that we've got SHOW EXPLAIN for */
+  String query_str;
+  
+  /* Overloaded virtual function */
+  void call_in_target_thread();
+};
+
+/**
+  Condition pushdown used for INFORMATION_SCHEMA / SHOW queries.
+  This structure is to implement an optimization when
+  accessing data dictionary data in the INFORMATION_SCHEMA
+  or SHOW commands.
+  When the query contain a TABLE_SCHEMA or TABLE_NAME clause,
+  narrow the search for data based on the constraints given.
+*/
+typedef struct st_lookup_field_values
+{
+  /**
+    Value of a TABLE_SCHEMA clause.
+    Note that this value length may exceed @c NAME_LEN.
+    @sa wild_db_value
+  */
+  LEX_CSTRING db_value;
+  /**
+    Value of a TABLE_NAME clause.
+    Note that this value length may exceed @c NAME_LEN.
+    @sa wild_table_value
+  */
+  LEX_CSTRING table_value;
+  /**
+    True when @c db_value is a LIKE clause,
+    false when @c db_value is an '=' clause.
+  */
+  bool wild_db_value;
+  /**
+    True when @c table_value is a LIKE clause,
+    false when @c table_value is an '=' clause.
+  */
+  bool wild_table_value;
+} LOOKUP_FIELD_VALUES;  
+
+/*
+  INFORMATION_SCHEMA: Execution plan for get_all_tables() call
+*/
+
+class IS_table_read_plan : public Sql_alloc
+{
+public:
+  IS_table_read_plan() : no_rows(false), trivial_show_command(FALSE) {}
+
+  bool no_rows;
+  /*
+    For EXPLAIN only: For SHOW KEYS and SHOW COLUMNS, we know which
+    db_name.table_name will be read, however for some reason we don't
+    set the fields in this->lookup_field_vals.
+    In order to not have JOIN::save_explain_data() walking over uninitialized
+    data, we set trivial_show_command=true.
+  */
+  bool trivial_show_command;
+
+  LOOKUP_FIELD_VALUES lookup_field_vals;
+  Item *partial_cond;
+
+  bool has_db_lookup_value()
+  {
+    return (lookup_field_vals.db_value.length &&
+           !lookup_field_vals.wild_db_value);
+  }
+  bool has_table_lookup_value()
+  {
+    return (lookup_field_vals.table_value.length &&
+            !lookup_field_vals.wild_table_value);
+  }
+};
+
+bool optimize_schema_tables_reads(JOIN *join);
+bool optimize_schema_tables_memory_usage(List<TABLE_LIST> &tables);
+
+/* Handle the ignored database directories list for SHOW/I_S. */
+bool ignore_db_dirs_init();
+void ignore_db_dirs_free();
+void ignore_db_dirs_reset();
+bool ignore_db_dirs_process_additions();
+bool push_ignored_db_dir(const char *path);
+extern char *opt_ignore_db_dirs;
+
+#endif /* SQL_SHOW_H */