RESET MASTER;
connection default;
CREATE TABLE t1(id INT AUTO_INCREMENT PRIMARY KEY, a INT, b INT) ENGINE=INNODB;
INSERT INTO t1(a, b) VALUES(1,2),(2,4),(3,6),(4,8),(5,10);
SET DEBUG_SYNC = "open_and_process_table signal truncate_before_lock wait_for forever";
TRUNCATE t1;
connect con1,localhost,root,,;
SET DEBUG_SYNC = "now wait_for truncate_before_lock";
SELECT ((@id := id) - id) FROM information_schema.processlist WHERE processlist.info LIKE '%TRUNCATE t1%' AND state LIKE '%open_and_process_table%';
((@id := id) - id)
0
KILL QUERY @id;
connection default;
ERROR 70100: Query execution was interrupted
connection con1;
show binlog events from <binlog_start>;
Log_name	Pos	Event_type	Server_id	End_log_pos	Info
master-bin.000001	#	Query	#	#	use `test`; CREATE TABLE t1(id INT AUTO_INCREMENT PRIMARY KEY, a INT, b INT) ENGINE=INNODB
master-bin.000001	#	Query	#	#	BEGIN
master-bin.000001	#	Intvar	#	#	INSERT_ID=1
master-bin.000001	#	Query	#	#	use `test`; INSERT INTO t1(a, b) VALUES(1,2),(2,4),(3,6),(4,8),(5,10)
master-bin.000001	#	Xid	#	#	COMMIT /* XID */
disconnect con1;
connection default;
SELECT * FROM t1;
id	a	b
1	1	2
2	2	4
3	3	6
4	4	8
5	5	10
DROP TABLE t1;
SET DEBUG_SYNC= 'RESET';