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merge with 4.0 to get fix for range bug

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monty@mysql.com
2003-11-28 15:55:43 +02:00
parent 8e613176b5 1976b25dc6
commit 5914033478
4 changed files with 22 additions and 6 deletions
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11
mysql-test/t/range.test
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@ -226,7 +226,18 @@ INSERT INTO t1 VALUES
# we expect that optimizer will choose index on A
EXPLAIN SELECT * FROM t1 WHERE a IN(1,2) AND b=5;
SELECT * FROM t1 WHERE a IN(1,2) AND b=5;
DROP TABLE t1;
#
# Test error with
#
CREATE TABLE t1 (a int, b int, c int, INDEX (c,a,b));
INSERT INTO t1 VALUES (1,0,0),(1,0,0),(1,0,0);
INSERT INTO t1 VALUES (0,1,0),(0,1,0),(0,1,0);
# -- First reports 3; second reports 6
SELECT COUNT(*) FROM t1 WHERE (c=0 and a=1) or (c=0 and b=1);
SELECT COUNT(*) FROM t1 WHERE (c=0 and b=1) or (c=0 and a=1);
DROP TABLE t1;
# test for a bug with in() and unique key