DROP TABLE IF EXISTS t1, t2;
SET DEBUG_SYNC= 'RESET';
#
# Bug#42438: Crash ha_partition::change_table_ptr
# Test when remove partitioning is done while drop table is waiting
# for the table.
# Con 1
SET DEBUG_SYNC= 'RESET';
CREATE TABLE t1
(a INTEGER,
b INTEGER NOT NULL,
KEY (b))
ENGINE = MYISAM
/*!50100  PARTITION BY RANGE (a)
(PARTITION p0 VALUES LESS THAN (2),
PARTITION p1 VALUES LESS THAN (20),
PARTITION p2 VALUES LESS THAN (100),
PARTITION p3 VALUES LESS THAN MAXVALUE ) */;
SET DEBUG_SYNC= 'alter_table_before_create_table_no_lock SIGNAL removing_partitioning WAIT_FOR waiting_for_alter';
SET DEBUG_SYNC= 'alter_table_before_main_binlog SIGNAL partitioning_removed';
ALTER TABLE t1 REMOVE PARTITIONING;
# Con default
SET DEBUG_SYNC= 'now WAIT_FOR removing_partitioning';
SET DEBUG_SYNC= 'waiting_for_table SIGNAL waiting_for_alter';
SET DEBUG_SYNC= 'rm_table_part2_before_delete_table WAIT_FOR partitioning_removed';
DROP TABLE IF EXISTS t1;
# Con 1
SET DEBUG_SYNC= 'RESET';
SET DEBUG_SYNC= 'RESET';
#
# Bug#42438: Crash ha_partition::change_table_ptr
# Test when remove partitioning is failing due to drop table is already
# in progress.
CREATE TABLE t2
(a INTEGER,
b INTEGER NOT NULL,
KEY (b))
ENGINE = MYISAM
/*!50100  PARTITION BY RANGE (a)
(PARTITION p0 VALUES LESS THAN (2),
PARTITION p1 VALUES LESS THAN (20),
PARTITION p2 VALUES LESS THAN (100),
PARTITION p3 VALUES LESS THAN MAXVALUE ) */;
SET DEBUG_SYNC= 'before_lock_tables_takes_lock SIGNAL removing_partitions WAIT_FOR waiting_for_alter';
SET DEBUG_SYNC= 'alter_table_before_rename_result_table WAIT_FOR delete_done';
ALTER TABLE t2 REMOVE PARTITIONING;
# Con default
SET DEBUG_SYNC= 'now WAIT_FOR removing_partitions';
SET DEBUG_SYNC= 'waiting_for_table SIGNAL waiting_for_alter';
SET DEBUG_SYNC= 'rm_table_part2_before_binlog SIGNAL delete_done';
DROP TABLE IF EXISTS t2;
# Con 1
ERROR 42S02: Table 'test.t2' doesn't exist
SET DEBUG_SYNC= 'RESET';
# Con default
SET DEBUG_SYNC= 'RESET';
End of 5.1 tests
