| Current Path : /home/usr.opt/mysql57/mysql-test/t/ |
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| Current File : //home/usr.opt/mysql57/mysql-test/t/myisam_mrr_cost.test |
# This tests the functionality of the Myisam engine
# These testcases also exist in InnoDB engine
# All tests are required to run with Myisam
# Hence MTR starts mysqld with MyISAM as default
--source include/force_myisam_default.inc
--source include/have_myisam.inc
#
# MRR/MyISAM tests.
# (Turns off all other 6.0 optimizer switches than cost-based MRR)
#
--source include/have_mrr.inc
set optimizer_switch='mrr=on,mrr_cost_based=on';
--disable_query_log
if (`select locate('semijoin', @@optimizer_switch) > 0`)
{
set optimizer_switch='semijoin=off';
}
if (`select locate('materialization', @@optimizer_switch) > 0`)
{
set optimizer_switch='materialization=off';
}
if (`select locate('index_condition_pushdown', @@optimizer_switch) > 0`)
{
set optimizer_switch='index_condition_pushdown=off';
}
--enable_query_log
set @read_rnd_buffer_size_save= @@read_rnd_buffer_size;
set read_rnd_buffer_size=79;
select @@read_rnd_buffer_size;
-- source include/mrr_tests.inc
set @@read_rnd_buffer_size= @read_rnd_buffer_size_save;
set optimizer_switch=default;