1
0
mirror of https://github.com/MariaDB/server.git synced 2025-07-30 16:24:05 +03:00

Merge olga.mysql.com:/home/igor/mysql-5.0-opt

into  olga.mysql.com:/home/igor/dev-opt/mysql-5.0-opt-bug32815
This commit is contained in:
unknown
2007-12-08 14:47:56 -08:00
3 changed files with 28 additions and 1 deletions

View File

@ -1213,4 +1213,16 @@ a b
3 2
1 1
DROP TABLE t1;
CREATE TABLE t1 (id int, type char(6), d int, INDEX idx(id,d)) ENGINE=InnoDB;
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
SELECT * FROM t1 WHERE id=191 OR id IS NULL ORDER BY d;
id type d
191 member 1
NULL member 3
NULL member 4
DROP TABLE t1;
End of 5.0 tests

View File

@ -960,4 +960,19 @@ SELECT * FROM t1 ORDER BY b DESC, a ASC;
DROP TABLE t1;
#
# Bug #32815: query with ORDER BY and a possible ref_or_null access
#
CREATE TABLE t1 (id int, type char(6), d int, INDEX idx(id,d)) ENGINE=InnoDB;
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;
SELECT * FROM t1 WHERE id=191 OR id IS NULL ORDER BY d;
DROP TABLE t1;
--echo End of 5.0 tests