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2b173bf894
The method DsMrr_impl::dsmrr_init erroneously tried to get a KEY descriptor for key with number MAX_KEY. This caused valgrind complains.
58 lines
2.4 KiB
Plaintext
58 lines
2.4 KiB
Plaintext
drop table if exists t1,t2;
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#
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# Bug #878769: valgrind complains when using join cache
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# to join an InnoDB table without primary key
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#
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CREATE TABLE t1 (
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col_int_key int(11), col_time_key time, col_varchar_key varchar(1),
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KEY (col_int_key), KEY (col_varchar_key,col_int_key)
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) ENGINE=InnoDB;
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INSERT IGNORE INTO t1 VALUES
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(7,'10:19:31','d'),(1,'14:40:36','r'),(7,'04:37:47','f'),(9,'19:34:06','y'),
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(2,'00:00:00','m'),(4,'00:13:25','q'),(0,'03:47:16',NULL),(4,'01:41:48','d'),
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(8,'00:00:00','g'),(NULL,'22:32:04','x'),(NULL,'16:44:14','f'),
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(0,'17:38:37','p'),(NULL,'08:46:48','j'),(8,'14:11:27','c');
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CREATE TABLE t2 (
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col_int_nokey int(11), col_int_key int(11),
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col_datetime_key datetime, col_datetime_nokey datetime,
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col_varchar_key varchar(1), col_varchar_nokey varchar(1),
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KEY (col_int_key), KEY (col_varchar_key,col_int_key)
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);
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INSERT IGNORE INTO t2 VALUES
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(150,62,'2008-01-03 10:33:32','2008-01-03 10:33:32','v','v'),
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(2,1,'2007-10-09 19:53:04','2007-10-09 19:53:04',NULL,NULL),
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(5,0,'2001-11-08 21:02:12','2001-11-08 21:02:12','x','x'),
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(3,7,'2003-04-01 00:00','2003-04-01 00:00','i','i'),
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(1,7,'1900-01-01 00:00','1900-01-01 00:00:00','e','e'),
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(NULL,7,'2005-04-04 01:21','2005-04-04 01:21','s','s'),
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(2,1,'1900-01-01 00:00','1900-01-01 00:00','j','j'),
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(8,0,'2004-04-28 21:44','2004-04-28 21:44','a','a'),
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(6,8,'2001-04-18 00:00','2001-04-18 00:00:00','y','y'),
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(8,1,'2008-12-18 19:39:55','2008-12-18 19:39:55',NULL,NULL),
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(3,1,'2000-08-01 12:19:39','2000-08-01 12:19:39','r','r'),
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(3,9,'2004-09-25 21:29:06','2004-09-25 21:29:06','v','v');
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set session optimizer_switch='mrr=on,mrr_sort_keys=on';
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set session join_cache_level=6;
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EXPLAIN
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SELECT t1.col_time_key, t1.col_varchar_key
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FROM t2 STRAIGHT_JOIN t1 ON t1.col_int_key = t2.col_int_key
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GROUP BY 1,2;
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id select_type table type possible_keys key key_len ref rows Extra
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1 SIMPLE t2 index col_int_key col_int_key 5 NULL 12 Using where; Using index; Using temporary; Using filesort
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1 SIMPLE t1 ref col_int_key col_int_key 5 test.t2.col_int_key 1 Using join buffer (flat, BKA join); Key-ordered Rowid-ordered scan
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SELECT t1.col_time_key, t1.col_varchar_key
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FROM t2 STRAIGHT_JOIN t1 ON t1.col_int_key = t2.col_int_key
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GROUP BY 1,2;
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col_time_key col_varchar_key
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00:00:00 g
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03:47:16 NULL
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04:37:47 f
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10:19:31 d
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14:11:27 c
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14:40:36 r
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17:38:37 p
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19:34:06 y
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set session optimizer_switch=default;
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set session join_cache_level=default;
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DROP TABLE t1,t2;
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