mariadb/mysql-test/main/subselect_no_scache.test

# 
# Run subselect.test without semi-join optimization (test materialize)
#
select @@optimizer_switch like '%subquery_cache=on%';
set optimizer_switch='subquery_cache=off';

set join_cache_level=1;
set @join_cache_level_for_subselect_test=@@join_cache_level;

--source subselect.test

set optimizer_switch=default;
select @@optimizer_switch like '%subquery_cache=on%';
set @join_cache_level_for_subselect_test=NULL;