merge

drop table if exists t1;

drop database if exists test2;

drop database if exists mysqltest;

create table t1 (

a int not null primary key,

b tinytext

7	7xb7	777	7xdd7

8	8xb8	888	8xdd8

9	9xb9	999	9xdd9

create database test2;

use test2;

create database mysqltest;

use mysqltest;

CREATE TABLE t2 (

a bigint unsigned NOT NULL PRIMARY KEY,

b int unsigned not null,

update t1 set d=null where a=1;

commit;

# FIXME now fails at random due to weird mixup between the 2 rows

#select a from t1 where d is null;

select a from t1 where d is null;

# pk delete

delete from t1 where a=1;