stop slave;
drop table if exists t1,t2,t3,t4,t5,t6,t7,t8,t9;
reset master;
reset slave;
drop table if exists t1,t2,t3,t4,t5,t6,t7,t8,t9;
start slave;
SHOW VARIABLES LIKE 'relay_log_space_limit';
Variable_name	Value
relay_log_space_limit	0
CREATE TABLE t1 (name varchar(64), age smallint(3));
INSERT INTO  t1 SET name='Andy', age=31;
INSERT t1 SET name='Jacob', age=2;
INSERT into t1 SET name='Caleb', age=1;
ALTER TABLE t1 ADD id int(8) ZEROFILL AUTO_INCREMENT PRIMARY KEY;
select * from t1;
name	age	id
Andy	31	00000001
Jacob	2	00000002
Caleb	1	00000003
select * from t1;
name	age	id
Andy	31	00000001
Jacob	2	00000002
Caleb	1	00000003
drop table t1;