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BUG#671361: virtual int Mrr_ordered_index_reader::refill_buffer(): Assertion `!know_key_tuple_params

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- Make sure we have enough space for both rowids and keys.
This commit is contained in:
Sergey Petrunya
2010-11-09 18:02:08 +02:00
parent 594a8648ef
commit 3d698ac616
4 changed files with 86 additions and 3 deletions
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34
mysql-test/t/maria_mrr.test
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@@ -87,7 +87,41 @@ EXPLAIN
DROP TABLE t1,t2,t3;
--echo #
--echo # BUG#671361: virtual int Mrr_ordered_index_reader::refill_buffer(): Assertion `!know_key_tuple_params
--echo # (works only on Maria because we need 1024-byte long key)
--echo #
SET SESSION optimizer_use_mrr = 'force';
SET SESSION join_cache_level = 6;
SET SESSION join_buffer_size = 1024;
CREATE TABLE t1 (
pk int(11) NOT NULL AUTO_INCREMENT,
col_varchar_1024_latin1_key varchar(1024) DEFAULT NULL,
PRIMARY KEY (pk),
KEY col_varchar_1024_latin1_key (col_varchar_1024_latin1_key)
) ENGINE=Aria;
INSERT INTO t1 VALUES
(1,'z'),
(2,'abcdefjhjkl'),
(3,'in'),
(4,'abcdefjhjkl'),
(6,'abcdefjhjkl');
CREATE TABLE t2 (
col_varchar_10_latin1 varchar(10) DEFAULT NULL
) ENGINE=Aria;
INSERT INTO t2 VALUES ('foo'), ('foo');
EXPLAIN SELECT count(*)
FROM t1 AS table1, t2 AS table2
WHERE
table1.col_varchar_1024_latin1_key = table2.col_varchar_10_latin1 AND table1.pk<>0 ;
SELECT count(*)
FROM t1 AS table1, t2 AS table2
WHERE
table1.col_varchar_1024_latin1_key = table2.col_varchar_10_latin1 AND table1.pk<>0 ;
drop table t1, t2;