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BUG#778434 Wrong result with in_to_exists=on in maria-5.3-mwl89

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- Make {ha_myisam,ha_maria}::index_read_idx_map check pushed index condition.
- Address review feedback (added comments)
This commit is contained in:
Sergey Petrunya
2011-07-14 17:44:37 +04:00
parent b1a177e438
commit 2a9c86be26
8 changed files with 122 additions and 2 deletions
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29
mysql-test/include/icp_tests.inc
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@ -225,3 +225,32 @@ SELECT COUNT(*) FROM t3;
DROP PROCEDURE insert_data;
DROP TABLE t1, t2, t3;
--echo #
--echo # BUG#778434 Wrong result with in_to_exists=on in maria-5.3-mwl89
--echo #
CREATE TABLE t1 ( f11 int) ;
INSERT IGNORE INTO t1 VALUES (0);
CREATE TABLE t2 ( f10 int) ;
INSERT IGNORE INTO t2 VALUES (0);
CREATE TABLE t3 ( f1 int NOT NULL , f10 int, PRIMARY KEY (f1)) ;
INSERT IGNORE INTO t3 VALUES (6,0),(10,0);
CREATE TABLE t4 ( f11 int) ;
INSERT IGNORE INTO t4 VALUES
(0),(0),(0),(0),(0),(0),(0),(0),(0),(0),(NULL),
(0),(0),(0),(0),(0),(0),(0),(0),(0),(0);
set @tmp_778434=@@optimizer_switch;
SET optimizer_switch='materialization=off,in_to_exists=on,subquery_cache=off,semijoin=off';
SELECT * FROM t1 INNER JOIN t2 ON t2.f10 = t1.f11
WHERE (6, 234) IN (
SELECT t3.f1, t3.f1
FROM t3 JOIN t4 ON t4.f11 = t3.f10
);
DROP TABLE t1,t2,t3,t4;
set optimizer_switch= @tmp_778434;