MariaDB [test]> CREATE TABLE t1 (f1 INT NOT NULL, f2 INT NOT NULL) ENGINE=innodb;
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Query OK, 0 rows affected (0.09 sec)
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MariaDB [test]> SET debug_dbug='d,innodb_alter_commit_crash_before_commit';
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Query OK, 0 rows affected (0.00 sec)
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MariaDB [test]> INSERT INTO t1 VALUES(1, 1);
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Query OK, 1 row affected (0.16 sec)
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MariaDB [test]> INSERT INTO t1 VALUES(2, 2);
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Query OK, 1 row affected (0.08 sec)
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MariaDB [test]> ALTER TABLE t1 ADD PRIMARY KEY (f2, f1);
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ERROR 2013 (HY000): Lost connection to MySQL server during query
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.. restart server & reconnect..
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MariaDB [test]> ALTER TABLE t1 ADD PRIMARY KEY (f2, f1);
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Query OK, 0 rows affected (0.20 sec)
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Records: 0 Duplicates: 0 Warnings: 0
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MariaDB [test]> SHOW CREATE TABLE t1;
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+-------+----------------------------------------------------------------------------------------------------------------------------------------+
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| Table | Create Table |
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+-------+----------------------------------------------------------------------------------------------------------------------------------------+
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| t1 | CREATE TABLE `t1` (
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`f1` int(11) NOT NULL,
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`f2` int(11) NOT NULL,
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PRIMARY KEY (`f2`,`f1`)
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) ENGINE=InnoDB DEFAULT CHARSET=latin1 |
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+-------+----------------------------------------------------------------------------------------------------------------------------------------+
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1 row in set (0.03 sec)
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MariaDB [test]> SELECT * FROM INFORMATION_SCHEMA.INNODB_SYS_TABLES;
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+----------+---------------------------+------+--------+-------+-------------+------------+---------------+
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| TABLE_ID | NAME | FLAG | N_COLS | SPACE | FILE_FORMAT | ROW_FORMAT | ZIP_PAGE_SIZE |
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+----------+---------------------------+------+--------+-------+-------------+------------+---------------+
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...
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| 19 | test/#sql-ib18-1827491244 | 1 | 5 | 5 | Antelope | Compact | 0 |
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| 20 | test/t1 | 1 | 5 | 6 | Antelope | Compact | 0 |
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+----------+---------------------------+------+--------+-------+-------------+------------+---------------+
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9 rows in set (0.00 sec)
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MariaDB [test]> \! ls data1/test
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#sql-426c_3.frm #sql-ib18-1827491244.ibd t1.frm t1.ibd
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|