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Fixed bug #33697.

Browse Source 
When the function test_if_skip_sort_order prefers index backward scan 
to ref access the corresponding access functions must be set accordingly.


mysql-test/include/mix1.inc:
  Added a test case for bug #33697.
  Corrected one previous bad merge.
mysql-test/r/innodb_mysql.result:
  Added a test case for bug #33697.
mysql-test/t/disabled.def:
  Turned innodb_mysql test on.
This commit is contained in:
unknown
2008-01-11 10:05:34 -08:00
parent 34cae15606
commit d8363a408f
4 changed files with 69 additions and 17 deletions
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27
mysql-test/r/innodb_mysql.result
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@ -1349,7 +1349,7 @@ INSERT INTO t1 VALUES
(191, 'member', 1), (NULL, 'member', 3), (NULL, 'member', 4), (201, 'member', 2);
EXPLAIN SELECT * FROM t1 WHERE id=191 OR id IS NULL ORDER BY d;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t1 ALL idx NULL NULL NULL 3 Using where; Using filesort
1 SIMPLE t1 ALL idx NULL NULL NULL 4 Using where; Using filesort
SELECT * FROM t1 WHERE id=191 OR id IS NULL ORDER BY d;
id type d
191 member 1
@ -1609,4 +1609,29 @@ alter table t1 order by a;
Warnings:
Warning 1105 ORDER BY ignored as there is a user-defined clustered index in the table 't1'
drop table t1;
CREATE TABLE t1
(vid integer NOT NULL,
tid integer NOT NULL,
idx integer NOT NULL,
name varchar(128) NOT NULL,
type varchar(128) NULL,
PRIMARY KEY(idx, vid, tid),
UNIQUE(vid, tid, name)
) ENGINE=InnoDB;
INSERT INTO t1 VALUES
(1,1,1,'pk',NULL),(2,1,1,'pk',NULL),(3,1,1,'pk',NULL),(4,1,1,'c1',NULL),
(5,1,1,'pk',NULL),(1,1,2,'c1',NULL),(2,1,2,'c1',NULL),(3,1,2,'c1',NULL),
(4,1,2,'c2',NULL),(5,1,2,'c1',NULL),(2,1,3,'c2',NULL),(3,1,3,'c2',NULL),
(4,1,3,'pk',NULL),(5,1,3,'c2',NULL),
(2,1,4,'c_extra',NULL),(3,1,4,'c_extra',NULL);
EXPLAIN SELECT * FROM t1 WHERE tid = 1 AND vid = 3 ORDER BY idx DESC;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t1 index vid PRIMARY 12 NULL 16 Using where
SELECT * FROM t1 WHERE tid = 1 AND vid = 3 ORDER BY idx DESC;
vid tid idx name type
3 1 4 c_extra NULL
3 1 3 c2 NULL
3 1 2 c1 NULL
3 1 1 pk NULL
DROP TABLE t1;
End of 5.1 tests