CREATE TABLE t(a INT PRIMARY KEY, b INT)ENGINE=InnoDB;
INSERT INTO t VALUES(2,2),(4,4),(8,8),(16,16),(32,32);
COMMIT;
XA START '123';
INSERT INTO t VALUES(1,1);
XA END '123';
XA PREPARE '123';
CONNECT  con1,localhost,root,,;
XA START '456';
INSERT INTO t VALUES(3,47),(5,67);
UPDATE t SET b=2*b WHERE a BETWEEN 5 AND 8;
XA END '456';
XA PREPARE '456';
CONNECT  con2,localhost,root,,;
XA START '789';
UPDATE t SET b=4*a WHERE a=32;
XA END '789';
XA PREPARE '789';
CONNECT  con3,localhost,root,,;
SET TRANSACTION ISOLATION LEVEL READ UNCOMMITTED;
SELECT * FROM t;
a	b
1	1
2	2
3	47
4	4
5	134
8	16
16	16
32	128
COMMIT;
SET TRANSACTION ISOLATION LEVEL READ UNCOMMITTED;
SELECT * FROM t;
a	b
1	1
2	2
3	47
4	4
5	134
8	16
16	16
32	128
COMMIT;
XA RECOVER;
formatID	gtrid_length	bqual_length	data
1	3	0	123
1	3	0	456
1	3	0	789
XA ROLLBACK '123';
XA ROLLBACK '456';
XA COMMIT '789';
SELECT * FROM t;
a	b
2	2
4	4
8	8
16	16
32	128
DROP TABLE t;