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SET SESSION STORAGE_ENGINE='InnoDB';
select @@global.use_stat_tables;
@@global.use_stat_tables
PREFERABLY
select @@session.use_stat_tables;
@@session.use_stat_tables
PREFERABLY
set @save_use_stat_tables=@@use_stat_tables;
set use_stat_tables='preferably';
DROP DATABASE IF EXISTS dbt3_s001;
CREATE DATABASE dbt3_s001;
use dbt3_s001;
set @save_optimizer_switch=@@optimizer_switch;
set optimizer_switch='extended_keys=off';
#
# Bug mdev-503: optimizer ignores setting use_stat_tables='preferably'
# 
flush tables 
customer, lineitem, nation, orders, part, partsupp, region, supplier;
set use_stat_tables='never';
EXPLAIN select sql_calc_found_rows straight_join
l_orderkey, sum(l_extendedprice*(1-l_discount)) as revenue,
o_orderdate, o_shippriority
from orders, customer, lineitem
where c_mktsegment = 'BUILDING' and c_custkey = o_custkey
and l_orderkey = o_orderkey and o_orderdate < date '1995-03-15'
      and l_shipdate > date '1995-03-15'
group by l_orderkey, o_orderdate, o_shippriority
order by revenue desc, o_orderdate
limit 10;
id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
1	SIMPLE	orders	ALL	PRIMARY,i_o_orderdate,i_o_custkey	NULL	NULL	NULL	#	Using where; Using temporary; Using filesort
1	SIMPLE	customer	eq_ref	PRIMARY	PRIMARY	4	dbt3_s001.orders.o_custkey	#	Using where
1	SIMPLE	lineitem	ref	PRIMARY,i_l_shipdate,i_l_orderkey,i_l_orderkey_quantity	PRIMARY	4	dbt3_s001.orders.o_orderkey	#	Using where
set use_stat_tables='preferably';
EXPLAIN select sql_calc_found_rows straight_join
l_orderkey, sum(l_extendedprice*(1-l_discount)) as revenue,
o_orderdate, o_shippriority
from orders, customer, lineitem
where c_mktsegment = 'BUILDING' and c_custkey = o_custkey
and l_orderkey = o_orderkey and o_orderdate < date '1995-03-15'
      and l_shipdate > date '1995-03-15'
group by l_orderkey, o_orderdate, o_shippriority
order by revenue desc, o_orderdate
limit 10;
id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
1	SIMPLE	orders	ALL	PRIMARY,i_o_orderdate,i_o_custkey	NULL	NULL	NULL	1500	Using where; Using temporary; Using filesort
1	SIMPLE	customer	eq_ref	PRIMARY	PRIMARY	4	dbt3_s001.orders.o_custkey	1	Using where
1	SIMPLE	lineitem	ref	PRIMARY,i_l_shipdate,i_l_orderkey,i_l_orderkey_quantity	PRIMARY	4	dbt3_s001.orders.o_orderkey	4	Using where
flush tables customer, orders, lineitem;
EXPLAIN select sql_calc_found_rows straight_join
l_orderkey, sum(l_extendedprice*(1-l_discount)) as revenue,
o_orderdate, o_shippriority
from orders, customer, lineitem
where c_mktsegment = 'BUILDING' and c_custkey = o_custkey
and l_orderkey = o_orderkey and o_orderdate < date '1995-03-15'
      and l_shipdate > date '1995-03-15'
group by l_orderkey, o_orderdate, o_shippriority
order by revenue desc, o_orderdate
limit 10;
id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
1	SIMPLE	orders	ALL	PRIMARY,i_o_orderdate,i_o_custkey	NULL	NULL	NULL	1500	Using where; Using temporary; Using filesort
1	SIMPLE	customer	eq_ref	PRIMARY	PRIMARY	4	dbt3_s001.orders.o_custkey	1	Using where
1	SIMPLE	lineitem	ref	PRIMARY,i_l_shipdate,i_l_orderkey,i_l_orderkey_quantity	PRIMARY	4	dbt3_s001.orders.o_orderkey	4	Using where
# End of the test case for mdev-503
set optimizer_switch=@save_optimizer_switch;
DROP DATABASE dbt3_s001;
use test;
set use_stat_tables=@save_use_stat_tables;
SET SESSION STORAGE_ENGINE=DEFAULT;