1--source include/not_embedded.inc
2--source include/have_innodb.inc
3#--source include/have_metadata_lock_info.inc
4
5#
6# Testing of problems with ALTER TABLE and events on the same table(s)
7#
8
9#
10# MDEV-24452 ALTER TABLE event take infinite time which for example breaks
11#            mysql_upgrade
12#
13
14SET GLOBAL event_scheduler=1;
15
16CREATE TABLE t1 (a int primary key, b int) engine=innodb;
17insert into t1 values (1,1),(2,2),(3,3);
18CREATE TABLE t2 (a int primary key) engine=innodb;
19
20CREATE EVENT e_t1 ON SCHEDULE EVERY 1 SECOND DO insert ignore into test.t2 select a from test.t1;
21
22let $wait_condition=SELECT count(*) > 0 from t2;
23--source include/wait_condition.inc
24select * from t2;
25drop event e_t1;
26
27# select * from information_schema.metadata_lock_info;
28ALTER TABLE mysql.event DROP PRIMARY KEY, ADD PRIMARY KEY(db,name);
29drop table t1,t2;
30
31SET GLOBAL event_scheduler=default;
32