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Merge olga.mysql.com:/home/igor/mysql-5.1-bugteam

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into  olga.mysql.com:/home/igor/dev-opt/mysql-5.1-bug35844


sql/sql_select.cc:
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2008-04-24 14:19:44 -07:00
parent 9cb63bfbdd 61f6c60274
commit 2a1ba656b4
4 changed files with 65 additions and 2 deletions
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32
mysql-test/t/order_by.test
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@ -1309,3 +1309,35 @@ WHERE t2.b=14 AND t2.a=t1.a AND 5.1<t2.c AND t1.b='DE'
ORDER BY t2.c LIMIT 1;
DROP TABLE t1,t2,t3;
#
# Bug#35844: Covering index for ref access not compatible with ORDER BY list
#
CREATE TABLE t1 (
id1 INT NULL,
id2 INT NOT NULL,
junk INT NOT NULL,
PRIMARY KEY (id1, id2, junk),
INDEX id2_j_id1 (id2, junk, id1)
);
INSERT INTO t1 VALUES (1, 1, 1), (2, 1, 2), (3, 1, 3), (4, 1, 4);
INSERT INTO t1 VALUES (5, 2, 1), (6, 2, 2), (7, 2, 3), (8, 2, 4);
INSERT INTO t1 VALUES (9, 3, 1), (10, 3, 2), (11, 3, 3), (12, 3, 4);
INSERT INTO t1 VALUES (13, 4, 1), (14, 4, 2), (15, 4, 3), (16, 4, 4);
INSERT INTO t1 VALUES (17, 5, 1), (18, 5, 2), (19, 5, 3), (20, 5, 4);
INSERT INTO t1 VALUES (21, 6, 1), (22, 6, 2), (23, 6, 3), (24, 6, 4);
INSERT INTO t1 VALUES (25, 7, 1), (26, 7, 2), (27, 7, 3), (28, 7, 4);
INSERT INTO t1 VALUES (29, 8, 1), (30, 8, 2), (31, 8, 3), (32, 8, 4);
INSERT INTO t1 VALUES (33, 9, 1), (34, 9, 2), (35, 9, 3), (36, 9, 4);
EXPLAIN SELECT id1 FROM t1 WHERE id2 = 4 ORDER BY id1;
SELECT id1 FROM t1 WHERE id2 = 4 ORDER BY id1;
DROP TABLE t1;