From 06eaf7232e9a920468c0f8d74dcf2fe8b555501c Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sat, 13 Apr 2024 14:24:36 +0200 Subject: Adding upstream version 1:10.11.6. Signed-off-by: Daniel Baumann --- storage/test_sql_discovery/CMakeLists.txt | 2 + .../mysql-test/archive/discover.test | 3 + .../mysql-test/main/t/create.test | 3 + .../test_sql_discovery/mysql-test/main/t/drop.test | 3 + .../mysql-test/main/t/mdl_sync.test | 3 + .../mysql-test/main/t/partition_disabled.test | 3 + .../mysql-test/main/t/plugin.test | 3 + .../mysql-test/main/t/rename.test | 3 + .../mysql-test/sql_discovery/inc.inc | 4 + .../mysql-test/sql_discovery/inc.opt | 2 + .../mysql-test/sql_discovery/simple.result | 190 +++++++++++++++++++++ .../mysql-test/sql_discovery/simple.test | 143 ++++++++++++++++ .../mysql-test/sql_discovery/suite.pm | 7 + storage/test_sql_discovery/test_sql_discovery.cc | 187 ++++++++++++++++++++ 14 files changed, 556 insertions(+) create mode 100644 storage/test_sql_discovery/CMakeLists.txt create mode 100644 storage/test_sql_discovery/mysql-test/archive/discover.test create mode 100644 storage/test_sql_discovery/mysql-test/main/t/create.test create mode 100644 storage/test_sql_discovery/mysql-test/main/t/drop.test create mode 100644 storage/test_sql_discovery/mysql-test/main/t/mdl_sync.test create mode 100644 storage/test_sql_discovery/mysql-test/main/t/partition_disabled.test create mode 100644 storage/test_sql_discovery/mysql-test/main/t/plugin.test create mode 100644 storage/test_sql_discovery/mysql-test/main/t/rename.test create mode 100644 storage/test_sql_discovery/mysql-test/sql_discovery/inc.inc create mode 100644 storage/test_sql_discovery/mysql-test/sql_discovery/inc.opt create mode 100644 storage/test_sql_discovery/mysql-test/sql_discovery/simple.result create mode 100644 storage/test_sql_discovery/mysql-test/sql_discovery/simple.test create mode 100644 storage/test_sql_discovery/mysql-test/sql_discovery/suite.pm create mode 100644 storage/test_sql_discovery/test_sql_discovery.cc (limited to 'storage/test_sql_discovery') diff --git a/storage/test_sql_discovery/CMakeLists.txt b/storage/test_sql_discovery/CMakeLists.txt new file mode 100644 index 00000000..2039b081 --- /dev/null +++ b/storage/test_sql_discovery/CMakeLists.txt @@ -0,0 +1,2 @@ +MYSQL_ADD_PLUGIN(test_sql_discovery test_sql_discovery.cc STORAGE_ENGINE + COMPONENT Test) diff --git a/storage/test_sql_discovery/mysql-test/archive/discover.test b/storage/test_sql_discovery/mysql-test/archive/discover.test new file mode 100644 index 00000000..6d741428 --- /dev/null +++ b/storage/test_sql_discovery/mysql-test/archive/discover.test @@ -0,0 +1,3 @@ +# run the normal test file with need_full_discover_for_existence>0 +--source ../sql_discovery/inc.inc +--source discover.test diff --git a/storage/test_sql_discovery/mysql-test/main/t/create.test b/storage/test_sql_discovery/mysql-test/main/t/create.test new file mode 100644 index 00000000..4b3dd16c --- /dev/null +++ b/storage/test_sql_discovery/mysql-test/main/t/create.test @@ -0,0 +1,3 @@ +# run the normal test file with need_full_discover_for_existence>0 +--source ../sql_discovery/inc.inc +--source create.test diff --git a/storage/test_sql_discovery/mysql-test/main/t/drop.test b/storage/test_sql_discovery/mysql-test/main/t/drop.test new file mode 100644 index 00000000..2b3f864e --- /dev/null +++ b/storage/test_sql_discovery/mysql-test/main/t/drop.test @@ -0,0 +1,3 @@ +# run the normal test file with need_full_discover_for_existence>0 +--source ../sql_discovery/inc.inc +--source drop.test diff --git a/storage/test_sql_discovery/mysql-test/main/t/mdl_sync.test b/storage/test_sql_discovery/mysql-test/main/t/mdl_sync.test new file mode 100644 index 00000000..9c052839 --- /dev/null +++ b/storage/test_sql_discovery/mysql-test/main/t/mdl_sync.test @@ -0,0 +1,3 @@ +# run the normal test file with need_full_discover_for_existence>0 +--source ../sql_discovery/inc.inc +--source mdl_sync.test diff --git a/storage/test_sql_discovery/mysql-test/main/t/partition_disabled.test b/storage/test_sql_discovery/mysql-test/main/t/partition_disabled.test new file mode 100644 index 00000000..7fccc33f --- /dev/null +++ b/storage/test_sql_discovery/mysql-test/main/t/partition_disabled.test @@ -0,0 +1,3 @@ +# run the normal test file with need_full_discover_for_existence>0 +--source ../sql_discovery/inc.inc +--source partition_disabled.test diff --git a/storage/test_sql_discovery/mysql-test/main/t/plugin.test b/storage/test_sql_discovery/mysql-test/main/t/plugin.test new file mode 100644 index 00000000..52315af0 --- /dev/null +++ b/storage/test_sql_discovery/mysql-test/main/t/plugin.test @@ -0,0 +1,3 @@ +# run the normal test file with need_full_discover_for_existence>0 +--source ../sql_discovery/inc.inc +--source plugin.test diff --git a/storage/test_sql_discovery/mysql-test/main/t/rename.test b/storage/test_sql_discovery/mysql-test/main/t/rename.test new file mode 100644 index 00000000..ba645131 --- /dev/null +++ b/storage/test_sql_discovery/mysql-test/main/t/rename.test @@ -0,0 +1,3 @@ +# run the normal test file with need_full_discover_for_existence>0 +--source ../sql_discovery/inc.inc +--source rename.test diff --git a/storage/test_sql_discovery/mysql-test/sql_discovery/inc.inc b/storage/test_sql_discovery/mysql-test/sql_discovery/inc.inc new file mode 100644 index 00000000..b13cbd7d --- /dev/null +++ b/storage/test_sql_discovery/mysql-test/sql_discovery/inc.inc @@ -0,0 +1,4 @@ +if (`SELECT COUNT(*) = 0 FROM INFORMATION_SCHEMA.ENGINES WHERE engine = 'test_sql_discovery' AND support='YES'`) +{ + --skip Test requires test_sql_discovery engine +} diff --git a/storage/test_sql_discovery/mysql-test/sql_discovery/inc.opt b/storage/test_sql_discovery/mysql-test/sql_discovery/inc.opt new file mode 100644 index 00000000..63f3eec3 --- /dev/null +++ b/storage/test_sql_discovery/mysql-test/sql_discovery/inc.opt @@ -0,0 +1,2 @@ +--plugin-load-add=$HA_TEST_SQL_DISCOVERY_SO +--loose-test-sql-discovery diff --git a/storage/test_sql_discovery/mysql-test/sql_discovery/simple.result b/storage/test_sql_discovery/mysql-test/sql_discovery/simple.result new file mode 100644 index 00000000..56c61cb8 --- /dev/null +++ b/storage/test_sql_discovery/mysql-test/sql_discovery/simple.result @@ -0,0 +1,190 @@ +show variables like 'test_sql_discovery%'; +Variable_name Value +test_sql_discovery_statement +test_sql_discovery_write_frm ON +set sql_quote_show_create=0; +create table t1 (a int) engine=test_sql_discovery; +ERROR HY000: Can't create table `test`.`t1` (errno: 131 "Command not supported by the engine") +select * from t1; +ERROR 42S02: Table 'test.t1' doesn't exist +set @@test_sql_discovery_statement='t1:foobar bwa-ha-ha'; +select * from t0; +ERROR 42S02: Table 'test.t0' doesn't exist +select * from t1; +ERROR HY000: Engine TEST_SQL_DISCOVERY failed to discover table `test`.`t1` with 'foobar bwa-ha-ha' +show warnings; +Level Code Message +Error 1064 You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near 'foobar bwa-ha-ha' at line 1 +Error 1939 Engine TEST_SQL_DISCOVERY failed to discover table `test`.`t1` with 'foobar bwa-ha-ha' +set @@test_sql_discovery_statement='t1:select 1'; +select * from t1; +ERROR HY000: Engine TEST_SQL_DISCOVERY failed to discover table `test`.`t1` with 'select 1' +show warnings; +Level Code Message +Error 1939 Engine TEST_SQL_DISCOVERY failed to discover table `test`.`t1` with 'select 1' +set @@test_sql_discovery_statement='t1:create table t1 (a int primary key) partition by hash(id) partitions 2'; +select * from t1; +ERROR HY000: Engine TEST_SQL_DISCOVERY failed to discover table `test`.`t1` with 'create table t1 (a int primary key) partition by hash(id) partitions 2' +show warnings; +Level Code Message +Error 1290 The MariaDB server is running with the --skip-partition option so it cannot execute this statement +Error 1939 Engine TEST_SQL_DISCOVERY failed to discover table `test`.`t1` with 'create table t1 (a int primary key) partition by hash(id) partitions 2' +set @@test_sql_discovery_statement='t1:create table t1 (a int) union=(t3,t4)'; +select * from t1; +ERROR HY000: Engine TEST_SQL_DISCOVERY failed to discover table `test`.`t1` with 'create table t1 (a int) union=(t3,t4)' +show warnings; +Level Code Message +Error 1939 Engine TEST_SQL_DISCOVERY failed to discover table `test`.`t1` with 'create table t1 (a int) union=(t3,t4)' +set @@test_sql_discovery_statement='t1:create table t1 like t2'; +select * from t1; +ERROR HY000: Engine TEST_SQL_DISCOVERY failed to discover table `test`.`t1` with 'create table t1 like t2' +show warnings; +Level Code Message +Error 1939 Engine TEST_SQL_DISCOVERY failed to discover table `test`.`t1` with 'create table t1 like t2' +set @@test_sql_discovery_statement='t1:create table t1 select * from t2'; +select * from t1; +ERROR HY000: Engine TEST_SQL_DISCOVERY failed to discover table `test`.`t1` with 'create table t1 select * from t2' +show warnings; +Level Code Message +Error 1939 Engine TEST_SQL_DISCOVERY failed to discover table `test`.`t1` with 'create table t1 select * from t2' +set @@test_sql_discovery_statement='t1:create table t1 (a int) index directory="/tmp"'; +select * from t1; +ERROR HY000: Engine TEST_SQL_DISCOVERY failed to discover table `test`.`t1` with 'create table t1 (a int) index directory="/tmp"' +show warnings; +Level Code Message +Error 1939 Engine TEST_SQL_DISCOVERY failed to discover table `test`.`t1` with 'create table t1 (a int) index directory="/tmp"' +set @@test_sql_discovery_statement='t1:create table t1 (a int) data directory="/tmp"'; +select * from t1; +ERROR HY000: Engine TEST_SQL_DISCOVERY failed to discover table `test`.`t1` with 'create table t1 (a int) data directory="/tmp"' +show warnings; +Level Code Message +Error 1939 Engine TEST_SQL_DISCOVERY failed to discover table `test`.`t1` with 'create table t1 (a int) data directory="/tmp"' +set @@test_sql_discovery_statement='t1:create table t1 (a int) engine=myisam'; +select * from t1; +ERROR HY000: Engine TEST_SQL_DISCOVERY failed to discover table `test`.`t1` with 'create table t1 (a int) engine=myisam' +show warnings; +Level Code Message +Error 1939 Engine TEST_SQL_DISCOVERY failed to discover table `test`.`t1` with 'create table t1 (a int) engine=myisam' +set @@test_sql_discovery_statement='t1:create temporary table t1 (a int)'; +select * from t1; +ERROR HY000: Engine TEST_SQL_DISCOVERY failed to discover table `test`.`t1` with 'create temporary table t1 (a int)' +show warnings; +Level Code Message +Error 1939 Engine TEST_SQL_DISCOVERY failed to discover table `test`.`t1` with 'create temporary table t1 (a int)' +set @@test_sql_discovery_statement='t1:create table if not exists t1 (a int)'; +select * from t1; +ERROR HY000: Engine TEST_SQL_DISCOVERY failed to discover table `test`.`t1` with 'create table if not exists t1 (a int)' +show warnings; +Level Code Message +Error 1939 Engine TEST_SQL_DISCOVERY failed to discover table `test`.`t1` with 'create table if not exists t1 (a int)' +set @@test_sql_discovery_statement='t1:create table t1 (a uint)'; +select * from t1; +ERROR HY000: Engine TEST_SQL_DISCOVERY failed to discover table `test`.`t1` with 'create table t1 (a uint)' +show warnings; +Level Code Message +Error 4161 Unknown data type: 'uint' +Error 1939 Engine TEST_SQL_DISCOVERY failed to discover table `test`.`t1` with 'create table t1 (a uint)' +set @@test_sql_discovery_statement='t1:create table t1 (a int)'; +select * from t1; +a +show create table t1; +Table Create Table +t1 CREATE TABLE t1 ( + a int(11) DEFAULT NULL +) ENGINE=TEST_SQL_DISCOVERY DEFAULT CHARSET=latin1 COLLATE=latin1_swedish_ci +drop table t1; +set @@test_sql_discovery_statement='t1:create table t2 (a int)'; +select * from t1; +a +select * from t2; +ERROR 42S02: Table 'test.t2' doesn't exist +drop table t1; +set @@test_sql_discovery_statement='t1:create table t1 (a int) engine=test_sql_discovery'; +select * from t1; +a +drop table t1; +set @@test_sql_discovery_statement='t1: +create table t1 ( + a int not null default 5 primary key, + b timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP, + c tinyblob, + d decimal(5,2), + e varchar(30) character set ascii, + f geometry not null, + index (d,b), + unique index (c(10)), + fulltext (e), + spatial (f) +) comment="abc" default character set utf8 max_rows=100 min_rows=10 checksum=1'; +show status like 'handler_discover'; +Variable_name Value +Handler_discover 15 +show create table t1; +Table Create Table +t1 CREATE TABLE t1 ( + a int(11) NOT NULL DEFAULT 5, + b timestamp NOT NULL DEFAULT current_timestamp() ON UPDATE current_timestamp(), + c tinyblob DEFAULT NULL, + d decimal(5,2) DEFAULT NULL, + e varchar(30) CHARACTER SET ascii COLLATE ascii_general_ci DEFAULT NULL, + f geometry NOT NULL, + PRIMARY KEY (a), + UNIQUE KEY c (c(10)), + KEY d (d,b), + SPATIAL KEY f (f), + FULLTEXT KEY e (e) +) ENGINE=TEST_SQL_DISCOVERY DEFAULT CHARSET=utf8mb3 COLLATE=utf8mb3_general_ci MIN_ROWS=10 MAX_ROWS=100 CHECKSUM=1 COMMENT='abc' +show status like 'handler_discover'; +Variable_name Value +Handler_discover 16 +---- +t1.frm +---- +show open tables from test; +Database Table In_use Name_locked +test t1 0 0 +select * from t1; +a b c d e f +show status like 'handler_discover'; +Variable_name Value +Handler_discover 16 +flush tables; +select * from t1; +a b c d e f +show status like 'handler_discover'; +Variable_name Value +Handler_discover 16 +drop table t1; +set @@test_sql_discovery_write_frm=0; +set @@test_sql_discovery_statement='t1:create table t1 (a int)'; +show status like 'handler_discover'; +Variable_name Value +Handler_discover 16 +show create table t1; +Table Create Table +t1 CREATE TABLE t1 ( + a int(11) DEFAULT NULL +) ENGINE=TEST_SQL_DISCOVERY DEFAULT CHARSET=latin1 COLLATE=latin1_swedish_ci +show status like 'handler_discover'; +Variable_name Value +Handler_discover 17 +---- +---- +show open tables from test; +Database Table In_use Name_locked +test t1 0 0 +select * from t1; +a +show status like 'handler_discover'; +Variable_name Value +Handler_discover 17 +flush tables; +select * from t1; +a +show status like 'handler_discover'; +Variable_name Value +Handler_discover 18 +drop table t1; +show status like 'handler_discover'; +Variable_name Value +Handler_discover 18 diff --git a/storage/test_sql_discovery/mysql-test/sql_discovery/simple.test b/storage/test_sql_discovery/mysql-test/sql_discovery/simple.test new file mode 100644 index 00000000..a8c7ef9a --- /dev/null +++ b/storage/test_sql_discovery/mysql-test/sql_discovery/simple.test @@ -0,0 +1,143 @@ +--source inc.inc + +show variables like 'test_sql_discovery%'; +set sql_quote_show_create=0; +let $mysqld_datadir= `select @@datadir`; + +--error ER_CANT_CREATE_TABLE +create table t1 (a int) engine=test_sql_discovery; + +--error ER_NO_SUCH_TABLE +select * from t1; + +set @@test_sql_discovery_statement='t1:foobar bwa-ha-ha'; +--error ER_NO_SUCH_TABLE +select * from t0; +--error ER_SQL_DISCOVER_ERROR +select * from t1; +show warnings; + +# +# test different invalid discovering statements +# + +set @@test_sql_discovery_statement='t1:select 1'; +--error ER_SQL_DISCOVER_ERROR +select * from t1; +show warnings; + +set @@test_sql_discovery_statement='t1:create table t1 (a int primary key) partition by hash(id) partitions 2'; +--error ER_SQL_DISCOVER_ERROR +select * from t1; +--replace_result 1289 1290 "The 'partitioning' feature is disabled; you need MariaDB built with '--with-plugin-partition' to have it working" "The MariaDB server is running with the --skip-partition option so it cannot execute this statement" +show warnings; + +set @@test_sql_discovery_statement='t1:create table t1 (a int) union=(t3,t4)'; +--error ER_SQL_DISCOVER_ERROR +select * from t1; +show warnings; + +set @@test_sql_discovery_statement='t1:create table t1 like t2'; +--error ER_SQL_DISCOVER_ERROR +select * from t1; +show warnings; + +set @@test_sql_discovery_statement='t1:create table t1 select * from t2'; +--error ER_SQL_DISCOVER_ERROR +select * from t1; +show warnings; + +set @@test_sql_discovery_statement='t1:create table t1 (a int) index directory="/tmp"'; +--error ER_SQL_DISCOVER_ERROR +select * from t1; +show warnings; + +set @@test_sql_discovery_statement='t1:create table t1 (a int) data directory="/tmp"'; +--error ER_SQL_DISCOVER_ERROR +select * from t1; +show warnings; + +set @@test_sql_discovery_statement='t1:create table t1 (a int) engine=myisam'; +--error ER_SQL_DISCOVER_ERROR +select * from t1; +show warnings; + +set @@test_sql_discovery_statement='t1:create temporary table t1 (a int)'; +--error ER_SQL_DISCOVER_ERROR +select * from t1; +show warnings; + +set @@test_sql_discovery_statement='t1:create table if not exists t1 (a int)'; +--error ER_SQL_DISCOVER_ERROR +select * from t1; +show warnings; + +set @@test_sql_discovery_statement='t1:create table t1 (a uint)'; +--error ER_SQL_DISCOVER_ERROR +select * from t1; +show warnings; + +# +# this should work: +# +set @@test_sql_discovery_statement='t1:create table t1 (a int)'; +select * from t1; +show create table t1; +drop table t1; + +# table name in the create table statement is ignored +set @@test_sql_discovery_statement='t1:create table t2 (a int)'; +select * from t1; +--error ER_NO_SUCH_TABLE +select * from t2; +drop table t1; + +set @@test_sql_discovery_statement='t1:create table t1 (a int) engine=test_sql_discovery'; +select * from t1; +drop table t1; + +# and something more complex +set @@test_sql_discovery_statement='t1: +create table t1 ( + a int not null default 5 primary key, + b timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP, + c tinyblob, + d decimal(5,2), + e varchar(30) character set ascii, + f geometry not null, + index (d,b), + unique index (c(10)), + fulltext (e), + spatial (f) +) comment="abc" default character set utf8 max_rows=100 min_rows=10 checksum=1'; +show status like 'handler_discover'; +show create table t1; +show status like 'handler_discover'; +--echo ---- +--list_files $mysqld_datadir/test t* +--echo ---- +show open tables from test; +select * from t1; +show status like 'handler_discover'; +flush tables; +select * from t1; +show status like 'handler_discover'; +drop table t1; + +set @@test_sql_discovery_write_frm=0; +set @@test_sql_discovery_statement='t1:create table t1 (a int)'; +show status like 'handler_discover'; +show create table t1; +show status like 'handler_discover'; +--echo ---- +--list_files $mysqld_datadir/test t* +--echo ---- +show open tables from test; +select * from t1; +show status like 'handler_discover'; +flush tables; +select * from t1; +show status like 'handler_discover'; +drop table t1; +show status like 'handler_discover'; + diff --git a/storage/test_sql_discovery/mysql-test/sql_discovery/suite.pm b/storage/test_sql_discovery/mysql-test/sql_discovery/suite.pm new file mode 100644 index 00000000..22f22514 --- /dev/null +++ b/storage/test_sql_discovery/mysql-test/sql_discovery/suite.pm @@ -0,0 +1,7 @@ +package My::Suite::SQL_Discovery; +@ISA = qw(My::Suite); + +sub is_default { 1 } + +bless { }; + diff --git a/storage/test_sql_discovery/test_sql_discovery.cc b/storage/test_sql_discovery/test_sql_discovery.cc new file mode 100644 index 00000000..0758d5f5 --- /dev/null +++ b/storage/test_sql_discovery/test_sql_discovery.cc @@ -0,0 +1,187 @@ +/* + Copyright (c) 2013 Monty Program Ab + + 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 +*/ + +/* + a really minimal engine to test table discovery via sql statements. + See the archive engine if you're interested in real-life usable engine that + uses discovery via frm shipping. +*/ + +#include +#include +#include +#include + +static MYSQL_THDVAR_STR(statement, PLUGIN_VAR_MEMALLOC, + "The table name and the SQL statement to discover the next table", + NULL, NULL, 0); + +static MYSQL_THDVAR_BOOL(write_frm, 0, + "Whether to cache discovered table metadata in frm files", + NULL, NULL, TRUE); + +static struct st_mysql_sys_var *sysvars[] = { + MYSQL_SYSVAR(statement), + MYSQL_SYSVAR(write_frm), + NULL +}; + +class TSD_share : public Handler_share { +public: + THR_LOCK lock; + TSD_share() + { + thr_lock_init(&lock); + } + ~TSD_share() + { + thr_lock_delete(&lock); + } +}; + +class ha_tsd: public handler +{ +private: + THR_LOCK_DATA lock; + TSD_share *share; + TSD_share *get_share(); + +public: + ha_tsd(handlerton *hton, TABLE_SHARE *table_arg) + : handler(hton, table_arg) { } + ulonglong table_flags() const + { // NO_TRANSACTIONS and everything that affects CREATE TABLE + return HA_NO_TRANSACTIONS | HA_CAN_GEOMETRY | HA_NULL_IN_KEY | + HA_CAN_INDEX_BLOBS | HA_AUTO_PART_KEY | HA_CAN_RTREEKEYS | + HA_CAN_FULLTEXT; + } + + ulong index_flags(uint inx, uint part, bool all_parts) const { return 0; } + + THR_LOCK_DATA **store_lock(THD *thd, THR_LOCK_DATA **to, + enum thr_lock_type lock_type) + { + if (lock_type != TL_IGNORE && lock.type == TL_UNLOCK) + lock.type = lock_type; + *to ++= &lock; + return to; + } + + int rnd_init(bool scan) { return 0; } + int rnd_next(unsigned char *buf) { return HA_ERR_END_OF_FILE; } + void position(const uchar *record) { } + int rnd_pos(uchar *buf, uchar *pos) { return HA_ERR_END_OF_FILE; } + int info(uint flag) { return 0; } + uint max_supported_keys() const { return 16; } + int create(const char *name, TABLE *table_arg, + HA_CREATE_INFO *create_info) { return HA_ERR_WRONG_COMMAND; } + + int open(const char *name, int mode, uint test_if_locked); + int close(void); +}; + +TSD_share *ha_tsd::get_share() +{ + TSD_share *tmp_share; + lock_shared_ha_data(); + if (!(tmp_share= static_cast(get_ha_share_ptr()))) + { + tmp_share= new TSD_share; + if (!tmp_share) + goto err; + + set_ha_share_ptr(static_cast(tmp_share)); + } +err: + unlock_shared_ha_data(); + return tmp_share; +} + +int ha_tsd::open(const char *name, int mode, uint test_if_locked) +{ + if (!(share= get_share())) + return HA_ERR_OUT_OF_MEM; + + thr_lock_data_init(&share->lock,&lock,NULL); + return 0; +} + +int ha_tsd::close(void) +{ + return 0; +} + +static handler *create_handler(handlerton *hton, TABLE_SHARE *table, + MEM_ROOT *mem_root) +{ + return new (mem_root) ha_tsd(hton, table); +} + +static int discover_table(handlerton *hton, THD* thd, TABLE_SHARE *share) +{ + const char *sql= THDVAR(thd, statement); + + // the table is discovered if sql starts from "table_name:" + if (!sql || + strncmp(sql, share->table_name.str, share->table_name.length) || + sql[share->table_name.length] != ':') + return HA_ERR_NO_SUCH_TABLE; + + sql+= share->table_name.length + 1; + return share->init_from_sql_statement_string(thd, THDVAR(thd, write_frm), + sql, strlen(sql)); +} + +static int drop_table(handlerton *hton, const char *path) +{ + const char *name= strrchr(path, FN_LIBCHAR)+1; + const char *sql= THDVAR(current_thd, statement); + return !sql || strncmp(sql, name, strlen(name)) || sql[strlen(name)] != ':' + ? ENOENT : 0; +} + +static int init(void *p) +{ + handlerton *hton = (handlerton *)p; + hton->create = create_handler; + hton->discover_table = discover_table; + hton->drop_table= drop_table; + return 0; +} + +struct st_mysql_storage_engine descriptor = +{ MYSQL_HANDLERTON_INTERFACE_VERSION }; + +maria_declare_plugin(test_sql_discovery) +{ + MYSQL_STORAGE_ENGINE_PLUGIN, + &descriptor, + "TEST_SQL_DISCOVERY", + "Sergei Golubchik", + "Minimal engine to test table discovery via sql statements", + PLUGIN_LICENSE_GPL, + init, + NULL, + 0x0001, + NULL, + sysvars, + "0.1", + MariaDB_PLUGIN_MATURITY_EXPERIMENTAL +} +maria_declare_plugin_end; + -- cgit v1.2.3