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# InnoDB supports native partitioning and is required by the test.
CREATE TABLE t1 (a int)
ENGINE = InnoDB
PARTITION BY HASH (a) PARTITIONS 2;
INSERT INTO t1 VALUES (1);
SELECT * FROM t1;
a
1
SHOW CREATE TABLE t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `a` int(11) DEFAULT NULL
) ENGINE=InnoDB DEFAULT CHARSET=latin1
/*!50100 PARTITION BY HASH (a)
PARTITIONS 2 */
DROP TABLE t1;
# MyISAM requires ha_partition to support partitioning.
CREATE TABLE t1 (a int)
ENGINE = MyISAM
PARTITION BY HASH (a) PARTITIONS 2;
ERROR HY000: The 'partitioning' feature is not available; you need to remove '--skip-partition' or use MySQL built with '-DWITH_PARTITION_STORAGE_ENGINE=1'
INSTALL PLUGIN `partition` SONAME 'ha_partition.so';
SELECT PLUGIN_NAME, PLUGIN_VERSION, PLUGIN_STATUS, PLUGIN_TYPE, PLUGIN_LIBRARY, PLUGIN_AUTHOR, PLUGIN_DESCRIPTION, PLUGIN_LICENSE, LOAD_OPTION FROM INFORMATION_SCHEMA.PLUGINS WHERE PLUGIN_NAME LIKE 'PARTITION';
PLUGIN_NAME	PLUGIN_VERSION	PLUGIN_STATUS	PLUGIN_TYPE	PLUGIN_LIBRARY	PLUGIN_AUTHOR	PLUGIN_DESCRIPTION	PLUGIN_LICENSE	LOAD_OPTION
partition	1.0	ACTIVE	STORAGE ENGINE	ha_partition.so	Mikael Ronstrom, MySQL AB	Partition Storage Engine Helper	GPL	ON
INSTALL PLUGIN `PARTITION` SONAME 'ha_partition.so';
ERROR HY000: Function 'PARTITION' already exists
CREATE TABLE t1 (a int)
ENGINE = MyISAM
PARTITION BY HASH (a) PARTITIONS 2;
INSERT INTO t1 VALUES (1), (2), (3), (4), (5);
# UNINSTALL will give a warning since an open table is in the table cache
UNINSTALL PLUGIN `partition`;
Warnings:
Warning	1620	Plugin is busy and will be uninstalled on shutdown
# Still working due to UNINSTALL not yet completed
SHOW CREATE TABLE t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `a` int(11) DEFAULT NULL
) ENGINE=MyISAM DEFAULT CHARSET=latin1
/*!50100 PARTITION BY HASH (a)
PARTITIONS 2 */
SELECT COUNT(*) FROM t1;
COUNT(*)
5
SELECT PLUGIN_NAME, PLUGIN_STATUS FROM INFORMATION_SCHEMA.PLUGINS WHERE PLUGIN_NAME LIKE 'PARTITION';
PLUGIN_NAME	PLUGIN_STATUS
partition	DELETED
SELECT COUNT(*) FROM mysql.plugin;
COUNT(*)
0
# FLUSH TABLES will close all tables and allow the UNINSTALL to complete
FLUSH TABLES;
SELECT COUNT(*) FROM INFORMATION_SCHEMA.PLUGINS WHERE plugin_name = 'partition';
COUNT(*)
0
SELECT COUNT(*) FROM mysql.plugin;
COUNT(*)
0
SHOW CREATE TABLE t1;
ERROR HY000: The 'partitioning' feature is not available; you need to remove '--skip-partition' or use MySQL built with '-DWITH_PARTITION_STORAGE_ENGINE=1'
SELECT COUNT(*) FROM t1;
ERROR HY000: The 'partitioning' feature is not available; you need to remove '--skip-partition' or use MySQL built with '-DWITH_PARTITION_STORAGE_ENGINE=1'
CREATE TABLE t2 (a int)
ENGINE = MyISAM
PARTITION BY HASH (a) PARTITIONS 2;
ERROR HY000: The 'partitioning' feature is not available; you need to remove '--skip-partition' or use MySQL built with '-DWITH_PARTITION_STORAGE_ENGINE=1'
DROP TABLE t1;
ERROR HY000: Storage engine for table 'test'.'t1' is not loaded.
INSTALL PLUGIN `PARTITION` SONAME 'ha_partition.so';
SELECT PLUGIN_NAME, PLUGIN_VERSION, PLUGIN_STATUS, PLUGIN_TYPE, PLUGIN_LIBRARY, PLUGIN_AUTHOR, PLUGIN_DESCRIPTION, PLUGIN_LICENSE, LOAD_OPTION FROM INFORMATION_SCHEMA.PLUGINS WHERE PLUGIN_NAME LIKE 'PARTITION';
PLUGIN_NAME	PLUGIN_VERSION	PLUGIN_STATUS	PLUGIN_TYPE	PLUGIN_LIBRARY	PLUGIN_AUTHOR	PLUGIN_DESCRIPTION	PLUGIN_LICENSE	LOAD_OPTION
partition	1.0	ACTIVE	STORAGE ENGINE	ha_partition.so	Mikael Ronstrom, MySQL AB	Partition Storage Engine Helper	GPL	ON
INSTALL PLUGIN `partition` SONAME 'ha_partition.so';
ERROR HY000: Function 'partition' already exists
DROP TABLE t1;
# Simple partitioned table test
CREATE TABLE t1(a int) PARTITION BY HASH (a) PARTITIONS 2;
SHOW CREATE TABLE t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `a` int(11) DEFAULT NULL
) ENGINE=InnoDB DEFAULT CHARSET=latin1
/*!50100 PARTITION BY HASH (a)
PARTITIONS 2 */
INSERT INTO t1 VALUES (1), (2), (3), (4), (5);
ALTER TABLE t1 ADD PARTITION PARTITIONS 1;
INSERT INTO t1 VALUES (6), (7), (8);
SELECT COUNT(*) FROM t1;
COUNT(*)
8
# Cannot drop a partition from a HASH partitioned table
ALTER TABLE t1 DROP PARTITION p0;
ERROR HY000: DROP PARTITION can only be used on RANGE/LIST partitions
ALTER TABLE t1 COALESCE PARTITION 2;
ALTER TABLE t1 COALESCE PARTITION 1;
ERROR HY000: Cannot remove all partitions, use DROP TABLE instead
SHOW CREATE TABLE t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `a` int(11) DEFAULT NULL
) ENGINE=InnoDB DEFAULT CHARSET=latin1
/*!50100 PARTITION BY HASH (a)
PARTITIONS 1 */
DROP TABLE t1;
UNINSTALL PLUGIN `partition`;
UNINSTALL PLUGIN `PARTITION`;
ERROR 42000: PLUGIN PARTITION does not exist

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