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;
create table t1 (n int not null auto_increment primary key);
insert into t1 values(NULL);
insert into t1 values(2);
select n from t1;
n
1
2
drop table t1;