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

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into  rurik.mysql.com:/home/igor/dev-opt/mysql-5.0-opt-bug21727
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igor@rurik.mysql.com
2006-11-01 14:50:14 -08:00
parent d778401633 2a7acba7e1
commit 79abdb38f8
12 changed files with 124 additions and 16 deletions
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16
mysql-test/r/subselect.result
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@ -3560,3 +3560,19 @@ FROM t1 GROUP BY t1.a LIMIT 1)
2
2
DROP TABLE t1,t2;
CREATE TABLE t1 (a int, b int auto_increment, PRIMARY KEY (b));
CREATE TABLE t2 (x int auto_increment, y int, z int,
PRIMARY KEY (x), FOREIGN KEY (y) REFERENCES t1 (b));
SET SESSION sort_buffer_size = 32 * 1024;
SELECT SQL_NO_CACHE COUNT(*)
FROM (SELECT a, b, (SELECT x FROM t2 WHERE y=b ORDER BY z DESC LIMIT 1) c
FROM t1) t;
COUNT(*)
3000
SET SESSION sort_buffer_size = 8 * 1024 * 1024;
SELECT SQL_NO_CACHE COUNT(*)
FROM (SELECT a, b, (SELECT x FROM t2 WHERE y=b ORDER BY z DESC LIMIT 1) c
FROM t1) t;
COUNT(*)
3000
DROP TABLE t1,t2;