10
create table t1 (a int not null auto_increment,b int, primary key (a)) engine=myisam auto_increment=3;
10
create TEMPORARY table t1 (a int not null auto_increment,b int, primary key (a)) engine=myisam auto_increment=3;
11
11
insert into t1 values (1,1),(NULL,3),(NULL,4);
12
12
delete from t1 where a=4;
13
13
insert into t1 values (NULL,5),(NULL,6);