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 primary key);
insert into t1 values (1);
create table t2 (n int);
insert into t2 values (1);
insert ignore into t1 select * from t2;
insert into t1 values (2);
select * from t1;
n
1
2
drop table t1,t2;