CREATE TABLE t1 (i INT) ENGINE=InnoDB;
CREATE TABLE t2 (i INT) ENGINE=InnoDB;
CREATE OR REPLACE TRIGGER tr1
AFTER UPDATE ON t2
FOR EACH ROW
INSERT INTO tlog (i) VALUES (1);
INSERT IGNORE INTO t2 VALUES (1);
CREATE TRIGGER IF NOT EXISTS tr2
BEFORE INSERT ON t2
FOR EACH ROW
INSERT INTO tlog (i) VALUES (2);
START TRANSACTION;
INSERT INTO t1 VALUES (1);
UPDATE t2 SET i = 3;
ERROR 42S02: Table 'test.tlog' doesn't exist
INSERT INTO t1 VALUES (2);
INSERT INTO t2 VALUES (4);
ERROR 42S02: Table 'test.tlog' doesn't exist
UPDATE t1 SET i = 4 LIMIT 1;
COMMIT;
SELECT * FROM t1;
i
4
2
SELECT * FROM t2;
i
1
DROP TABLE t1,t2;