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| author | Igor Babaev <igor@askmonty.org> | 2011-09-30 18:55:02 -0700 |
|---|---|---|
| committer | Igor Babaev <igor@askmonty.org> | 2011-09-30 18:55:02 -0700 |
| commit | 715dc5f99ddf852a5ef45bcb68c6c86298f6a7c3 (patch) | |
| tree | 3557e3bfdfa8723372daf13fa6f46ffdd30483b6 /mysql-test/t/myisam.test | |
| parent | 42b928ca05fca3ae8858566622a3a483a70aa3fc (diff) | |
| download | mariadb-git-715dc5f99ddf852a5ef45bcb68c6c86298f6a7c3.tar.gz | |
Fixed a cost estimation bug introduced into in the function best_access_path
of the 5.3 code line after a merge with 5.2 on 2010-10-28
in order not to allow the cost to access a joined table to be equal
to 0 ever.
Expanded data sets for many test cases to get the same execution plans
as before.
Diffstat (limited to 'mysql-test/t/myisam.test')
| -rw-r--r-- | mysql-test/t/myisam.test | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/mysql-test/t/myisam.test b/mysql-test/t/myisam.test index e912eb754f4..2f3eff31ff5 100644 --- a/mysql-test/t/myisam.test +++ b/mysql-test/t/myisam.test @@ -350,7 +350,7 @@ DROP TABLE t1; # CREATE TABLE t1 (a int not null, b int, c int, key(b), key(c), key(a,b), key(c,a)); -INSERT into t1 values (0, null, 0), (0, null, 1), (0, null, 2), (0, null,3), (1,1,4); +INSERT into t1 values (0,null,0), (0,null,1), (0,null,2), (0,null,3), (1,1,4); create table t2 (a int not null, b int, c int, key(b), key(c), key(a)); INSERT into t2 values (1,1,1), (2,2,2); optimize table t1; @@ -358,7 +358,13 @@ show index from t1; explain select * from t1,t2 where t1.a=t2.a; explain select * from t1,t2 force index(a) where t1.a=t2.a; explain select * from t1 force index(a),t2 force index(a) where t1.a=t2.a; +INSERT into t1 values (2,4,5), (7,8,4), (8,3,1), (9,7,2), (5,5,9); +optimize table t1; +show index from t1; explain select * from t1,t2 where t1.b=t2.b; +delete from t1 where t1.a>1; +optimize table t1; +show index from t1; explain select * from t1,t2 force index(c) where t1.a=t2.a; explain select * from t1 where a=0 or a=2; explain select * from t1 force index (a) where a=0 or a=2; |