qsnCt9HP

1drop table if exists gh_ost_test;
2create table gh_ost_test (
3  id int auto_increment,
4  c1 int not null,
5  c2 int not null,
6  primary key (id)
7) auto_increment=1;
8
9drop event if exists gh_ost_test;
10delimiter ;;
11create event gh_ost_test
12  on schedule every 1 second
13  starts current_timestamp
14  ends current_timestamp + interval 60 second
15  on completion not preserve
16  enable
17  do
18begin
19  insert ignore into gh_ost_test values (1, 11, 23);
20  insert ignore into gh_ost_test values (2, 13, 23);
21  insert into gh_ost_test values (null, 17, 23);
22  set @last_insert_id := last_insert_id();
23  update gh_ost_test set c1=c1+@last_insert_id, c2=c2+@last_insert_id where id=@last_insert_id order by id desc limit 1;
24  delete from gh_ost_test where id=1;
25  delete from gh_ost_test where c1=13; -- id=2
26end ;;