DROP TABLE IF EXISTS t1, t2;
CREATE TABLE t1 (a INT, b CHAR(8), pk INT AUTO_INCREMENT PRIMARY KEY) ENGINE=xengine;
INSERT INTO t1 (a,b) VALUES (1,'a'),(2,'b'),(3,'a');
CREATE TABLE t2 LIKE t1;
INSERT INTO t2 SELECT * FROM t1;
START TRANSACTION WITH CONSISTENT SNAPSHOT;
SAVEPOINT a;
SELECT * FROM t1 ORDER BY pk;
a	b	pk
1	a	1
2	b	2
3	a	3
ROLLBACK TO SAVEPOINT a;
SAVEPOINT a;
SELECT * FROM t2 ORDER BY pk;
a	b	pk
1	a	1
2	b	2
3	a	3
ROLLBACK TO SAVEPOINT a;
ALTER TABLE t1 RENAME TO t3;
DROP TABLE t2, t3;