B4BY.588

: / usr / share / mysql-test / t /
Filename : subquery_sj_dupsweed.test
back
# 
# Run subquery_sj.inc with semijoin and turn off all strategies to make
# it resort to duplicate weedout strategy.
#

--source include/have_semijoin.inc

--disable_query_log
if (`select locate('materialization', @@optimizer_switch) > 0`) 
{
  set optimizer_switch='materialization=off';
}
if (`select locate('firstmatch', @@optimizer_switch) > 0`) 
{
  set optimizer_switch='firstmatch=off';
}
if (`select locate('loosescan', @@optimizer_switch) > 0`) 
{
  set optimizer_switch='loosescan=off';
}
if (`select locate('index_condition_pushdown', @@optimizer_switch) > 0`) 
{
  set optimizer_switch='index_condition_pushdown=off';
}
if (`select locate('mrr', @@optimizer_switch) > 0`) 
{
  set optimizer_switch='mrr=off';
}
--enable_query_log

--source include/subquery_sj.inc

set optimizer_switch=default;