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# MDEV-7586 regression test.
# Test if created_tmp_tables status variable is correctly incremented.
--source include/have_perfschema.inc
--source include/not_embedded.inc
# Tests will be skipped for the view protocol because the view protocol creates
# an additional util connection and other statistics data
-- source include/no_view_protocol.inc
create table t2 (a int);
insert into t2 values (1),(2),(3);
create view v2 as select a from t2;
--disable_cursor_protocol
flush status;
select * from v2;
--disable_ps_protocol
show status like '%Created_tmp_tables%';
--enable_ps_protocol
explain select * from v2;
select * from (select * from t2) T1;
--disable_ps_protocol
show status like '%Created_tmp_tables%';
--enable_ps_protocol
--enable_cursor_protocol
explain select * from (select * from t2) T1;
drop view v2;
drop table t2;
--disable_ps_protocol
CREATE TABLE t1(a int);
INSERT INTO t1 values(1),(2);
CREATE TABLE t2(a int);
INSERT INTO t2 values(1),(2);
EXPLAIN SELECT * FROM t1 WHERE a IN (SELECT * FROM t2 GROUP BY a HAVING a > 1);
truncate table performance_schema.events_statements_history_long;
flush status;
CREATE TABLE t3 SELECT * FROM t1 WHERE a IN (SELECT * FROM t2 GROUP BY a HAVING a > 1);
--echo # Performance schema should be the same as "Created_tmp_tables" variable below
select sum(created_tmp_tables) from performance_schema.events_statements_history_long;
show status like '%Created_tmp_tables%';
drop table t3;
set @@optimizer_switch="firstmatch=off";
EXPLAIN SELECT * FROM t1 WHERE a IN (SELECT * FROM t2 GROUP BY a);
truncate table performance_schema.events_statements_history_long;
flush status;
CREATE TABLE t3 SELECT * FROM t1 WHERE a IN (SELECT * FROM t2 GROUP BY a);
--echo # Performance schema should be the same as "Created_tmp_tables" variable below
select sum(created_tmp_tables) from performance_schema.events_statements_history_long;
show status like '%Created_tmp_tables%';
set @@optimizer_switch=default;
drop table t1,t2,t3;
truncate table performance_schema.events_statements_history_long;
flush status;
--echo # Performance schema should be the same as "Created_tmp_tables" variable below
select sum(created_tmp_tables) from performance_schema.events_statements_history_long;
show status like '%Created_tmp_tables%';
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