mariadb/mysql-test/t/subselect_scache.test

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

--source t/subselect.test

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