CREATE TABLE t1 (c1 INT NOT NULL PRIMARY KEY, c2 INT NOT NULL, c3 INT NOT NULL) ENGINE=InnoDB;
INSERT INTO t1 VALUES (0, 0, 0);

# On connection 1
START TRANSACTION;
UPDATE t1 SET c1=1, c2=1 WHERE c1=0 AND c2=0;

# On connection 2
START TRANSACTION;
UPDATE t1 SET c2=2 WHERE c1=0 AND c2=3;

# On connection 3
include/start_transaction_high_prio.inc
START TRANSACTION /* HIGH PRIORITY */;
UPDATE t1 SET c2=3 WHERE c2=0;
COMMIT;

# On connection 1
COMMIT;
ERROR HY000: Got error 149 - 'Lock deadlock; Retry transaction' during COMMIT

# On connection 2
COMMIT;
include/assert.inc ['There is no 3 in t1']
include/assert.inc ['There is a 2 in t1']
include/assert.inc ['There is no 1 in t1']
DROP TABLE t1;