# # BUG#40827 - Killing insert-select to MyISAM can cause table corruption # CONNECT insertConn, localhost, root,,; CREATE TABLE `t1` ( `id` BIGINT(20) , `id1` BIGINT(20) AUTO_INCREMENT, KEY(id1), KEY(id) ) ENGINE=MyISAM; CREATE TABLE `t2` ( `id` BIGINT(20) , `id1` BIGINT(20) AUTO_INCREMENT, KEY (id1), KEY(id) ) ENGINE=MyISAM; INSERT INTO t2 (id) VALUES (123); connection insertConn; SET SESSION debug_dbug='+d,wait_in_enable_indexes'; # Send insert data INSERT INTO t1(id) SELECT id FROM t2; connection default; # Wait for insert data to reach the debug point SELECT ID FROM INFORMATION_SCHEMA.PROCESSLIST WHERE STATE = 'wait_in_enable_indexes' AND INFO = "INSERT INTO t1(id) SELECT id FROM t2" INTO @thread_id; KILL QUERY @thread_id; CHECK TABLE t1; Table Op Msg_type Msg_text test.t1 check status OK DROP TABLE t1,t2; disconnect insertConn; call mtr.add_suppression("Index for table '.*test.t1\\.MYI' is corrupt; try to repair it"); create table t1 (a int, index(a)); lock tables t1 write; insert t1 values (1),(2),(1); set @old_dbug=@@debug_dbug; SET debug_dbug='+d,mi_lock_database_failure'; unlock tables; ERROR HY000: Index for table './test/t1.MYI' is corrupt; try to repair it SHOW WARNINGS; Level Code Message Error 126 Index for table './test/t1.MYI' is corrupt; try to repair it Error 1030 Got error 22 "Invalid argument" from storage engine MyISAM SET debug_dbug=@old_dbug; drop table t1;