set @save_query_cache_size=@@query_cache_size;
#
# MDEV-12485: foreign key on delete cascade stale entries with
# query cache enabled
#
SET NAMES utf8;
set global query_cache_type=1;
set global query_cache_size=1024*1024;
set query_cache_type=1;
create table t1 ( id int unsigned auto_increment, primary key(id) ) engine=innodb;
create table t2 ( t2id int unsigned, id int unsigned, primary key(t2id, id), foreign key (`id`) references t1(`id`) on delete cascade ) engine=innodb;
insert into t1 values (1);
insert into t2 values (1,1);
select * from t2;
t2id	id
1	1
show status like "Qcache_queries_in_cache";
Variable_name	Value
Qcache_queries_in_cache	1
delete from t1;
show status like "Qcache_queries_in_cache";
Variable_name	Value
Qcache_queries_in_cache	0
select * from t2;
t2id	id
optimize table t2;
Table	Op	Msg_type	Msg_text
test.t2	optimize	note	Table does not support optimize, doing recreate + analyze instead
test.t2	optimize	status	OK
select * from t2;
t2id	id
drop table t2;
drop table t1;
create database `testdatabase$ї`;
use `testdatabase$ї`;
create table `t1$ї` ( id int unsigned auto_increment, primary key(id) ) engine=innodb;
create table `t2$ї` ( t2id int unsigned, id int unsigned, primary key(t2id, id), foreign key (`id`) references `t1$ї`(`id`) on delete cascade ) engine=innodb;
insert into `t1$ї` values (1);
insert into  `t2$ї`values (1,1);
select * from `t2$ї`;
t2id	id
1	1
show status like "Qcache_queries_in_cache";
Variable_name	Value
Qcache_queries_in_cache	1
delete from `t1$ї`;
show status like "Qcache_queries_in_cache";
Variable_name	Value
Qcache_queries_in_cache	0
select * from `t2$ї`;
t2id	id
optimize table `t2$ї`;
Table	Op	Msg_type	Msg_text
testdatabase$ї.t2$ї	optimize	note	Table does not support optimize, doing recreate + analyze instead
testdatabase$ї.t2$ї	optimize	status	OK
select * from `t2$ї`;
t2id	id
use test;
drop database `testdatabase$ї`;
SET NAMES default;
create database `#mysql50#-`;
use `#mysql50#-`;
create table `#mysql50#t-1` ( id int unsigned auto_increment, primary key(id) ) engine=innodb;
create table `#mysql50#t-2` ( t2id int unsigned, id int unsigned, primary key(t2id, id), foreign key (`id`) references `#mysql50#t-1`(`id`) on delete cascade ) engine=innodb;
insert into `#mysql50#t-1` values (1);
insert into  `#mysql50#t-2`values (1,1);
select * from `#mysql50#t-2`;
t2id	id
1	1
show status like "Qcache_queries_in_cache";
Variable_name	Value
Qcache_queries_in_cache	1
delete from `#mysql50#t-1`;
show status like "Qcache_queries_in_cache";
Variable_name	Value
Qcache_queries_in_cache	0
select * from `#mysql50#t-2`;
t2id	id
optimize table `#mysql50#t-2`;
Table	Op	Msg_type	Msg_text
#mysql50#-.#mysql50#t-2	optimize	note	Table does not support optimize, doing recreate + analyze instead
#mysql50#-.#mysql50#t-2	optimize	status	OK
select * from `#mysql50#t-2`;
t2id	id
use test;
drop database `#mysql50#-`;
SET NAMES default;
FOUND 8 /\[ERROR\] Invalid \(old\?\) table or database name/ in mysqld.1.err
set global query_cache_type=DEFAULT;
set global query_cache_size=@save_query_cache_size;
End of 10.2 tests