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Bug #57663 Concurrent statement using stored function and DROP DATABASE

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breaks SBR

This pre-requisite patch refactors the code for dropping tables, used
by DROP TABLE and DROP DATABASE. The patch moves the code for acquiring
metadata locks out of mysql_rm_table_part2() and makes it the
responsibility of the caller. This in preparation of changing the
DROP DATABASE implementation to acquire all metadata locks before any
changes are made. mysql_rm_table_part2() is renamed
mysql_rm_table_no_locks() to reflect the change.
This commit is contained in:
Jon Olav Hauglid
2010-11-16 11:00:12 +01:00
parent 0caa22b145
commit 0ef8d8e26c
5 changed files with 158 additions and 110 deletions
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10
mysql-test/t/partition_debug_sync.test
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@ -38,7 +38,7 @@ connection default;
--echo # Con default
SET DEBUG_SYNC= 'now WAIT_FOR removing_partitioning';
SET DEBUG_SYNC= 'mdl_acquire_lock_wait SIGNAL waiting_for_alter';
SET DEBUG_SYNC= 'rm_table_part2_before_delete_table WAIT_FOR partitioning_removed';
SET DEBUG_SYNC= 'rm_table_no_locks_before_delete_table WAIT_FOR partitioning_removed';
DROP TABLE IF EXISTS t1;
--echo # Con 1
connection con1;
@ -70,12 +70,12 @@ SET DEBUG_SYNC= 'alter_table_before_rename_result_table WAIT_FOR delete_done';
--send ALTER TABLE t2 REMOVE PARTITIONING
connection default;
--echo # Con default
SET SESSION debug= "+d,sleep_before_part2_delete_table";
SET SESSION debug= "+d,sleep_before_no_locks_delete_table";
SET DEBUG_SYNC= 'now WAIT_FOR removing_partitions';
SET DEBUG_SYNC= 'rm_table_part2_before_delete_table SIGNAL waiting_for_alter';
SET DEBUG_SYNC= 'rm_table_part2_before_binlog SIGNAL delete_done';
SET DEBUG_SYNC= 'rm_table_no_locks_before_delete_table SIGNAL waiting_for_alter';
SET DEBUG_SYNC= 'rm_table_no_locks_before_binlog SIGNAL delete_done';
DROP TABLE IF EXISTS t2;
SET SESSION debug= "-d,sleep_before_part2_delete_table";
SET SESSION debug= "-d,sleep_before_no_locks_delete_table";
--echo # Con 1
connection con1;
--error ER_NO_SUCH_TABLE