Dmitry Shulga 4b0fe88708 Fixed bug#56619 - Assertion failed during ... ALTER TABLE RENAME, DISABLE KEYS. The code of ALTER TABLE RENAME, DISABLE KEYS could issue a commit while holding LOCK_open mutex. This is a regression introduced by the fix for Bug 54453. This failed an assert guarding us against a potential deadlock with connections trying to execute FLUSH TABLES WITH READ LOCK. The fix is to move acquisition of LOCK_open outside the section that issues ha_autocommit_or_rollback(). LOCK_open is taken to protect against concurrent operations with .frms and the table definition cache, and doesn't need to cover the call to commit. A test case added to innodb_mysql.test. The patch is to be null-merged to 5.5, which already has 54453 null-merged to it. mysql-test/suite/innodb/r/innodb_mysql.result: Added test results for test for bug#56619. mysql-test/suite/innodb/t/innodb_mysql.test: Added test for bug#56619. sql/sql_table.cc: mysql_alter_table() modified: moved acquisition of LOCK_open after call to ha_autocommit_or_rollback.		2010-11-10 14:32:42 +06:00
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r	Fixed bug#56619 - Assertion failed during	2010-11-10 14:32:42 +06:00
t	Fixed bug#56619 - Assertion failed during	2010-11-10 14:32:42 +06:00