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merge of bug #37830 to 5.1

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This commit is contained in:
Georgi Kodinov
2008-07-17 18:51:24 +03:00
parent c137f3d450 99cc894f91
commit 804277fdbe
5 changed files with 70 additions and 62 deletions
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18
mysql-test/include/mix1.inc
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@ -1103,6 +1103,24 @@ set @my_innodb_commit_concurrency=@@global.innodb_commit_concurrency;
set global innodb_commit_concurrency=0;
set global innodb_commit_concurrency=@my_innodb_commit_concurrency;
#
# Bug #37830: ORDER BY ASC/DESC - no difference
#
CREATE TABLE t1 (a int, b int, c int, PRIMARY KEY (a), KEY t1_b (b))
ENGINE=InnoDB;
INSERT INTO t1 (a,b,c) VALUES (1,1,1), (2,1,1), (3,1,1), (4,1,1);
INSERT INTO t1 (a,b,c) SELECT a+4,b,c FROM t1;
# should be range access
EXPLAIN SELECT a, b, c FROM t1 WHERE b = 1 ORDER BY a DESC LIMIT 5;
# should produce '8 7 6 5 4' for a
SELECT a, b, c FROM t1 WHERE b = 1 ORDER BY a DESC LIMIT 5;
DROP TABLE t1;
--echo End of 5.0 tests
# Fix for BUG#19243 "wrong LAST_INSERT_ID() after ON DUPLICATE KEY

15
mysql-test/r/innodb_mysql.result
View File

@ -1362,6 +1362,21 @@ set global innodb_autoextend_increment=@my_innodb_autoextend_increment;
set @my_innodb_commit_concurrency=@@global.innodb_commit_concurrency;
set global innodb_commit_concurrency=0;
set global innodb_commit_concurrency=@my_innodb_commit_concurrency;
CREATE TABLE t1 (a int, b int, c int, PRIMARY KEY (a), KEY t1_b (b))
ENGINE=InnoDB;
INSERT INTO t1 (a,b,c) VALUES (1,1,1), (2,1,1), (3,1,1), (4,1,1);
INSERT INTO t1 (a,b,c) SELECT a+4,b,c FROM t1;
EXPLAIN SELECT a, b, c FROM t1 WHERE b = 1 ORDER BY a DESC LIMIT 5;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t1 index t1_b PRIMARY 4 NULL 8 Using where
SELECT a, b, c FROM t1 WHERE b = 1 ORDER BY a DESC LIMIT 5;
a b c
8 1 1
7 1 1
6 1 1
5 1 1
4 1 1
DROP TABLE t1;
End of 5.0 tests
CREATE TABLE `t2` (
`k` int(11) NOT NULL auto_increment,