# Stop DB server which was created by MTR default
SHOW DATABASES;
Database
__recycle_bin__
information_schema
mysql
performance_schema
sys
test
USE test;
SHOW CREATE TABLE t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `id` int(11) NOT NULL,
  `data` char(20) COLLATE utf8mb4_general_ci DEFAULT NULL,
  PRIMARY KEY (`id`),
  KEY `idx_data` (`data`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_general_ci
SELECT * FROM t1;
id	data
1	12345
CREATE TABLE t2 (ID INT, DATA CHAR(20), DATA2 TEXT, PRIMARY KEY(`ID`), KEY(`DATA`)) ENGINE=XENGINE;
INSERT INTO t2 VALUES (1,'12345','ABCDEFG');
SELECT * FROM t2;
ID	DATA	DATA2
1	12345	ABCDEFG
ALTER TABLE t1 ADD COLUMN data2 VARCHAR(100) DEFAULT 'abcdefg', ALGORITHM=INSTANT;
ALTER TABLE t2 ADD COLUMN data3 VARCHAR(100) DEFAULT 'abcdefg', ALGORITHM=INSTANT;
ALTER TABLE t1 ADD INDEX k_2(`data2`);
ALTER TABLE t2 ADD INDEX k_3(`data3`);
CHECK TABLE t1;
Table	Op	Msg_type	Msg_text
test.t1	check	status	OK
CHECK TABLE t2;
Table	Op	Msg_type	Msg_text
test.t2	check	status	OK
USE information_schema;
"--xengine=1, show all xengine info tables"
SHOW TABLES LIKE '%XENGINE%';
Tables_in_information_schema (%XENGINE%)
XENGINE_CFSTATS
XENGINE_COLUMNS
XENGINE_COMPACTION_HISTORY
XENGINE_COMPACTION_STATS
XENGINE_COMPACTION_TASK
XENGINE_DBSTATS
XENGINE_DDL
XENGINE_DEBUG_INFO
XENGINE_GLOBAL_INFO
XENGINE_INDEX_FILE_MAP
XENGINE_LOCKS
XENGINE_MEM_ALLOC
XENGINE_PERF_CONTEXT
XENGINE_PERF_CONTEXT_GLOBAL
XENGINE_QUERY_TRACE
XENGINE_SUBTABLE
XENGINE_TABLES
XENGINE_TABLE_SPACE
XENGINE_TRX
# restart again, test recovery with --xengine=1
USE test;
SHOW CREATE TABLE t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `id` int(11) NOT NULL,
  `data` char(20) COLLATE utf8mb4_general_ci DEFAULT NULL,
  `data2` varchar(100) COLLATE utf8mb4_general_ci DEFAULT 'abcdefg',
  PRIMARY KEY (`id`),
  KEY `idx_data` (`data`),
  KEY `k_2` (`data2`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_general_ci
SHOW CREATE TABLE t2;
Table	Create Table
t2	CREATE TABLE `t2` (
  `ID` int(11) NOT NULL,
  `DATA` char(20) DEFAULT NULL,
  `DATA2` text,
  `data3` varchar(100) DEFAULT 'abcdefg',
  PRIMARY KEY (`ID`),
  KEY `DATA` (`DATA`),
  KEY `k_3` (`data3`)
) ENGINE=XENGINE DEFAULT CHARSET=latin1
SELECT * FROM t1;
id	data	data2
1	12345	abcdefg
SELECT * FROM t2;
ID	DATA	DATA2	data3
1	12345	ABCDEFG	abcdefg
ALTER TABLE t1 ADD COLUMN data3 VARCHAR(100) DEFAULT '1234567890', ALGORITHM=INSTANT;
ALTER TABLE t2 ADD COLUMN data4 VARCHAR(100) DEFAULT '1234567890', ALGORITHM=INSTANT;
ALTER TABLE t1 ADD INDEX k_3(`data3`);
ALTER TABLE t2 ADD INDEX k_4(`data4`);
SHOW CREATE TABLE t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `id` int(11) NOT NULL,
  `data` char(20) COLLATE utf8mb4_general_ci DEFAULT NULL,
  `data2` varchar(100) COLLATE utf8mb4_general_ci DEFAULT 'abcdefg',
  `data3` varchar(100) COLLATE utf8mb4_general_ci DEFAULT '1234567890',
  PRIMARY KEY (`id`),
  KEY `idx_data` (`data`),
  KEY `k_2` (`data2`),
  KEY `k_3` (`data3`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_general_ci
SHOW CREATE TABLE t2;
Table	Create Table
t2	CREATE TABLE `t2` (
  `ID` int(11) NOT NULL,
  `DATA` char(20) DEFAULT NULL,
  `DATA2` text,
  `data3` varchar(100) DEFAULT 'abcdefg',
  `data4` varchar(100) DEFAULT '1234567890',
  PRIMARY KEY (`ID`),
  KEY `DATA` (`DATA`),
  KEY `k_3` (`data3`),
  KEY `k_4` (`data4`)
) ENGINE=XENGINE DEFAULT CHARSET=latin1
SELECT * FROM t1;
id	data	data2	data3
1	12345	abcdefg	1234567890
SELECT * FROM t2;
ID	DATA	DATA2	data3	data4
1	12345	ABCDEFG	abcdefg	1234567890
CHECK TABLE t1;
Table	Op	Msg_type	Msg_text
test.t1	check	status	OK
CHECK TABLE t2;
Table	Op	Msg_type	Msg_text
test.t2	check	status	OK
USE information_schema;
"--xengine=1, show all xengine info tables"
SHOW TABLES like '%XENGINE%';
Tables_in_information_schema (%XENGINE%)
XENGINE_CFSTATS
XENGINE_COLUMNS
XENGINE_COMPACTION_HISTORY
XENGINE_COMPACTION_STATS
XENGINE_COMPACTION_TASK
XENGINE_DBSTATS
XENGINE_DDL
XENGINE_DEBUG_INFO
XENGINE_GLOBAL_INFO
XENGINE_INDEX_FILE_MAP
XENGINE_LOCKS
XENGINE_MEM_ALLOC
XENGINE_PERF_CONTEXT
XENGINE_PERF_CONTEXT_GLOBAL
XENGINE_QUERY_TRACE
XENGINE_SUBTABLE
XENGINE_TABLES
XENGINE_TABLE_SPACE
XENGINE_TRX
DROP TABLE test.t1;
DROP TABLE test.t2;
# restart, test --xengine=0 upgrade
SHOW DATABASES;
Database
__recycle_bin__
information_schema
mysql
performance_schema
sys
test
USE test;
SHOW CREATE TABLE t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `id` int(11) NOT NULL,
  `data` char(20) COLLATE utf8mb4_general_ci DEFAULT NULL,
  PRIMARY KEY (`id`),
  KEY `idx_data` (`data`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_general_ci
SELECT * FROM t1;
id	data
1	12345
CREATE TABLE t2 (ID INT, DATA CHAR(20), DATA2 TEXT, PRIMARY KEY(`ID`), KEY(`DATA`)) ENGINE=XENGINE;
ERROR 42000: Unknown storage engine 'XENGINE'
CREATE TABLE t2 (ID INT, DATA CHAR(20), DATA2 TEXT, PRIMARY KEY(`ID`), KEY(`DATA`)) ENGINE=INNODB;
INSERT INTO t2 VALUES (1,'12345','ABCDEFG');
SELECT * FROM t2;
ID	DATA	DATA2
1	12345	ABCDEFG
ALTER TABLE t1 ADD COLUMN data2 VARCHAR(100) DEFAULT 'abcdefg', ALGORITHM=INSTANT;
ALTER TABLE t2 ADD COLUMN data3 VARCHAR(100) DEFAULT 'abcdefg', ALGORITHM=INSTANT;
ALTER TABLE t1 ADD INDEX k_2(`data2`);
ALTER TABLE t2 ADD INDEX k_3(`data3`);
CHECK TABLE t1;
Table	Op	Msg_type	Msg_text
test.t1	check	status	OK
CHECK TABLE t2;
Table	Op	Msg_type	Msg_text
test.t2	check	status	OK
USE information_schema;
"--xengine = 0, should have nothing"
SHOW TABLES LIKE '%XENGINE%';
Tables_in_information_schema (%XENGINE%)
# restart again, to test recovery with --xengine=0 
USE test;
SHOW CREATE TABLE t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `id` int(11) NOT NULL,
  `data` char(20) COLLATE utf8mb4_general_ci DEFAULT NULL,
  `data2` varchar(100) COLLATE utf8mb4_general_ci DEFAULT 'abcdefg',
  PRIMARY KEY (`id`),
  KEY `idx_data` (`data`),
  KEY `k_2` (`data2`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_general_ci
SHOW CREATE TABLE t2;
Table	Create Table
t2	CREATE TABLE `t2` (
  `ID` int(11) NOT NULL,
  `DATA` char(20) DEFAULT NULL,
  `DATA2` text,
  `data3` varchar(100) DEFAULT 'abcdefg',
  PRIMARY KEY (`ID`),
  KEY `DATA` (`DATA`),
  KEY `k_3` (`data3`)
) ENGINE=InnoDB DEFAULT CHARSET=latin1
SELECT * FROM t1;
id	data	data2
1	12345	abcdefg
SELECT * FROM t2;
ID	DATA	DATA2	data3
1	12345	ABCDEFG	abcdefg
CREATE TABLE t3 (ID INT, DATA CHAR(20), DATA2 TEXT, PRIMARY KEY(`ID`), KEY(`DATA`)) ENGINE=XENGINE;
ERROR 42000: Unknown storage engine 'XENGINE'
ALTER TABLE t1 ADD COLUMN data3 VARCHAR(100) DEFAULT '1234567890', ALGORITHM=INSTANT;
ALTER TABLE t2 ADD COLUMN data4 VARCHAR(100) DEFAULT '1234567890', ALGORITHM=INSTANT;
ALTER TABLE t1 ADD INDEX k_3(`data3`);
ALTER TABLE t2 ADD INDEX k_4(`data4`);
SHOW CREATE TABLE t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `id` int(11) NOT NULL,
  `data` char(20) COLLATE utf8mb4_general_ci DEFAULT NULL,
  `data2` varchar(100) COLLATE utf8mb4_general_ci DEFAULT 'abcdefg',
  `data3` varchar(100) COLLATE utf8mb4_general_ci DEFAULT '1234567890',
  PRIMARY KEY (`id`),
  KEY `idx_data` (`data`),
  KEY `k_2` (`data2`),
  KEY `k_3` (`data3`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_general_ci
SHOW CREATE TABLE t2;
Table	Create Table
t2	CREATE TABLE `t2` (
  `ID` int(11) NOT NULL,
  `DATA` char(20) DEFAULT NULL,
  `DATA2` text,
  `data3` varchar(100) DEFAULT 'abcdefg',
  `data4` varchar(100) DEFAULT '1234567890',
  PRIMARY KEY (`ID`),
  KEY `DATA` (`DATA`),
  KEY `k_3` (`data3`),
  KEY `k_4` (`data4`)
) ENGINE=InnoDB DEFAULT CHARSET=latin1
SELECT * FROM t1;
id	data	data2	data3
1	12345	abcdefg	1234567890
SELECT * FROM t2;
ID	DATA	DATA2	data3	data4
1	12345	ABCDEFG	abcdefg	1234567890
CHECK TABLE t1;
Table	Op	Msg_type	Msg_text
test.t1	check	status	OK
CHECK TABLE t2;
Table	Op	Msg_type	Msg_text
test.t2	check	status	OK
USE information_schema;
"--xengine = 0, should have nothing"
SHOW TABLES LIKE '%XENGINE%';
Tables_in_information_schema (%XENGINE%)
# restart again, to test upgrade from --xengine=0 to --xengine=1 
USE test;
SHOW CREATE TABLE t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `id` int(11) NOT NULL,
  `data` char(20) COLLATE utf8mb4_general_ci DEFAULT NULL,
  `data2` varchar(100) COLLATE utf8mb4_general_ci DEFAULT 'abcdefg',
  `data3` varchar(100) COLLATE utf8mb4_general_ci DEFAULT '1234567890',
  PRIMARY KEY (`id`),
  KEY `idx_data` (`data`),
  KEY `k_2` (`data2`),
  KEY `k_3` (`data3`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_general_ci
SHOW CREATE TABLE t2;
Table	Create Table
t2	CREATE TABLE `t2` (
  `ID` int(11) NOT NULL,
  `DATA` char(20) DEFAULT NULL,
  `DATA2` text,
  `data3` varchar(100) DEFAULT 'abcdefg',
  `data4` varchar(100) DEFAULT '1234567890',
  PRIMARY KEY (`ID`),
  KEY `DATA` (`DATA`),
  KEY `k_3` (`data3`),
  KEY `k_4` (`data4`)
) ENGINE=InnoDB DEFAULT CHARSET=latin1
SELECT * FROM t1;
id	data	data2	data3
1	12345	abcdefg	1234567890
SELECT * FROM t2;
ID	DATA	DATA2	data3	data4
1	12345	ABCDEFG	abcdefg	1234567890
CREATE TABLE t3 (ID INT, DATA CHAR(20), DATA2 TEXT, PRIMARY KEY(`ID`), KEY(`DATA`)) ENGINE=XENGINE;
INSERT INTO t3 values(1, '12345', 'abcdefg');
ALTER TABLE t3 ADD COLUMN DATA3 VARCHAR(100) DEFAULT '!@#$%^&*';
ALTER TABLE t3 ADD INDEX key_3 (`DATA3`);
SHOW CREATE TABLE t3;
Table	Create Table
t3	CREATE TABLE `t3` (
  `ID` int(11) NOT NULL,
  `DATA` char(20) DEFAULT NULL,
  `DATA2` text,
  `DATA3` varchar(100) DEFAULT '!@#$%^&*',
  PRIMARY KEY (`ID`),
  KEY `DATA` (`DATA`),
  KEY `key_3` (`DATA3`)
) ENGINE=XENGINE DEFAULT CHARSET=latin1
SELECT * FROM t3;
ID	DATA	DATA2	DATA3
1	12345	abcdefg	!@#$%^&*
USE information_schema;
"--xengine=1 should have xengine info tables"
SHOW TABLES LIKE '%XENGINE%';
Tables_in_information_schema (%XENGINE%)
XENGINE_CFSTATS
XENGINE_COLUMNS
XENGINE_COMPACTION_HISTORY
XENGINE_COMPACTION_STATS
XENGINE_COMPACTION_TASK
XENGINE_DBSTATS
XENGINE_DDL
XENGINE_DEBUG_INFO
XENGINE_GLOBAL_INFO
XENGINE_INDEX_FILE_MAP
XENGINE_LOCKS
XENGINE_MEM_ALLOC
XENGINE_PERF_CONTEXT
XENGINE_PERF_CONTEXT_GLOBAL
XENGINE_QUERY_TRACE
XENGINE_SUBTABLE
XENGINE_TABLES
XENGINE_TABLE_SPACE
XENGINE_TRX
SELECT DISTINCT(SUBTABLE_ID), TABLE_NAME, SUBTABLE_NAME FROM information_schema.xengine_subtable;
SUBTABLE_ID	TABLE_NAME	SUBTABLE_NAME
0	<internal>	default
1	<internal>	__system__
256	test.t3	PRIMARY
257	test.t3	DATA
258	test.t3	key_3
DROP TABLE test.t1;
DROP TABLE test.t2;
# restart: