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MWL#89: Address review feedback (by Sergey Petrunia)

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mysql-test/r/subselect4.result:
  Moved test case for LP BUG#718593 into the correct test file subselect_mat_cost_bugs.test.
mysql-test/t/subselect4.test:
  Moved test case for LP BUG#718593 into the correct test file subselect_mat_cost_bugs.test.
This commit is contained in:
unknown
2011-05-23 10:56:05 +03:00
parent 56c0e19ed0
commit 742dfc92a2
11 changed files with 187 additions and 178 deletions
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87
mysql-test/t/subselect_mat_cost_bugs.test
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@ -258,54 +258,71 @@ WHERE ( f2 ) IN (SELECT t1.f1
drop table t1,t2,t3;
--echo #
--echo # LP BUG#718593 Crash in substitute_for_best_equal_field -> eliminate_item_equal ->
--echo # Item_field::find_item_equal -> Item_equal::contains
--echo #
--echo # LP BUG#718593 Crash in substitute_for_best_equal_field ->
--echo # eliminate_item_equal -> Item_field::find_item_equal -> Item_equal::contains
--disable_parsing # not yet fixed
set @save_optimizer_switch=@@optimizer_switch;
SET @@optimizer_switch = 'semijoin=off';
CREATE TABLE t1 ( f3 int(11), f10 varchar(1), f11 varchar(1)) ;
INSERT IGNORE INTO t1 VALUES (6,'f','f'),(2,'d','d');
CREATE TABLE t2 ( f12 int(11), f13 int(11)) ;
set @save_optimizer_switch=@@optimizer_switch;
set @@optimizer_switch='materialization=off,in_to_exists=on,semijoin=off';
EXPLAIN
SELECT * FROM t2
WHERE (f12) IN (
SELECT alias2.f3
FROM t1 AS alias1, t1 AS alias2
WHERE (alias2.f10 = alias1.f11) AND
(alias1.f11 OR alias1.f3 = 50 AND alias1.f10));
SELECT * FROM t2
WHERE (f12) IN (
SELECT alias2.f3
FROM t1 AS alias1, t1 AS alias2
WHERE (alias2.f10 = alias1.f11) AND
(alias1.f11 OR alias1.f3 = 50 AND alias1.f10));
insert into t2 values (1,2), (3,4);
EXPLAIN
SELECT * FROM t2
WHERE (f12) IN (
SELECT alias2.f3
FROM t1 AS alias1, t1 AS alias2
WHERE (alias2.f10 = alias1.f11) AND
(alias1.f11 OR alias1.f3 = 50 AND alias1.f10));
WHERE ( f12 ) IN (
SELECT alias2.f3
FROM t1 AS alias1 JOIN t1 AS alias2 ON alias2.f10 = alias1.f11
WHERE alias1.f11 OR alias1.f3 = 50 AND alias1.f10
);
SELECT * FROM t2
WHERE (f12) IN (
SELECT alias2.f3
FROM t1 AS alias1, t1 AS alias2
WHERE (alias2.f10 = alias1.f11) AND
(alias1.f11 OR alias1.f3 = 50 AND alias1.f10));
WHERE ( f12 ) IN (
SELECT alias2.f3
FROM t1 AS alias1 JOIN t1 AS alias2 ON alias2.f10 = alias1.f11
WHERE alias1.f11 OR alias1.f3 = 50 AND alias1.f10
);
set session optimizer_switch=@save_optimizer_switch;
EXPLAIN
SELECT * FROM t2
WHERE ( f12 ) IN (
SELECT alias2.f3
FROM t1 AS alias1, t1 AS alias2
WHERE (alias2.f10 = alias1.f11) AND (alias1.f11 OR alias1.f3 = 50 AND alias1.f10));
SELECT * FROM t2
WHERE ( f12 ) IN (
SELECT alias2.f3
FROM t1 AS alias1, t1 AS alias2
WHERE (alias2.f10 = alias1.f11) AND (alias1.f11 OR alias1.f3 = 50 AND alias1.f10));
set @@optimizer_switch=@save_optimizer_switch;
drop table t1, t2;
--enable_parsing
--echo #
--echo # MWL#89: test introduced after Sergey Petrunia's review - test that
--echo # keyparts wihtout index prefix are used with the IN-EXISTS strategy.
--echo #
create table t1 (c1 int);
insert into t1 values (1), (2), (3);
create table t2 (kp1 int, kp2 int, c2 int, filler char(100));
insert into t2 values (0,0,0,'filler'),(0,1,1,'filler'),(0,2,2,'filler'),(0,3,3,'filler');
create index key1 on t2 (kp1, kp2);
create index key2 on t2 (kp1);
create index key3 on t2 (kp2);
set session optimizer_switch='default';
analyze table t2;
explain
select c1 from t1 where c1 in (select kp1 from t2 where kp2 = 10 and c2 = 4) or c1 > 7;
select c1 from t1 where c1 in (select kp1 from t2 where kp2 = 10 and c2 = 4) or c1 > 7;
drop table t1, t2;