diff options
| author | unknown <monty@mysql.com> | 2004-05-06 04:40:45 +0300 |
|---|---|---|
| committer | unknown <monty@mysql.com> | 2004-05-06 04:40:45 +0300 |
| commit | d91477ced61be70f496e4188f21ecb8114c72c26 (patch) | |
| tree | 80f76507b006a150b010103690cf00076522d53b /mysql-test/r/key.result | |
| parent | 1f32e9a19985554a0e79f16b349f7afcc0dbbe57 (diff) | |
| download | mariadb-git-d91477ced61be70f496e4188f21ecb8114c72c26.tar.gz | |
Fixed wrong key usage which caused wrong result for some "WHERE primary_key=constant" queries where MySQL could use 'only index' (Bug #3666)
The bug was introduced in a patch in the 4.1.2 source tree.
mysql-test/r/key.result:
New result
mysql-test/t/key.test:
Added test case for bug in key read
sql/sql_select.cc:
Fixed wrong key usage which caused wrong result for some "WHERE primary_key=constant" queries where MySQL could use 'only index' (Bug #3666)
Diffstat (limited to 'mysql-test/r/key.result')
| -rw-r--r-- | mysql-test/r/key.result | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/mysql-test/r/key.result b/mysql-test/r/key.result index b8387389075..28824de94ce 100644 --- a/mysql-test/r/key.result +++ b/mysql-test/r/key.result @@ -222,3 +222,16 @@ explain select 1 from t1 where id =2; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t1 ref id id 4 const 1 Using where; Using index drop table t1; +CREATE TABLE t1 (numeropost mediumint(8) unsigned NOT NULL default '0', numreponse int(10) unsigned NOT NULL auto_increment, PRIMARY KEY (numeropost,numreponse), UNIQUE KEY numreponse (numreponse)); +INSERT INTO t1 (numeropost,numreponse) VALUES ('1','1'),('1','2'),('2','3'),('2','4'); +SELECT numeropost FROM t1 WHERE numreponse='1'; +numeropost +1 +EXPLAIN SELECT numeropost FROM t1 WHERE numreponse='1'; +id select_type table type possible_keys key key_len ref rows Extra +1 SIMPLE t1 const numreponse numreponse 4 const 1 Using index +FLUSH TABLES; +SELECT numeropost FROM t1 WHERE numreponse='1'; +numeropost +1 +drop table t1; |