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| author | Jan Lindström <jan.lindstrom@mariadb.com> | 2015-06-24 07:16:08 +0300 |
|---|---|---|
| committer | Jan Lindström <jan.lindstrom@mariadb.com> | 2015-06-24 07:16:08 +0300 |
| commit | 2e4984c185ddcd2da789017cd147338846ff409a (patch) | |
| tree | 0293831900c860600efbaa747ea886d9d1cbf5bd /mysql-test/t/selectivity.test | |
| parent | 792b53e80806df893ee62c9a1c1bd117114c8c6d (diff) | |
| parent | a6087e7dc1ef3561d8189c8db15e9591d0f9b520 (diff) | |
| download | mariadb-git-10.0-FusionIO.tar.gz | |
Merge tag 'mariadb-10.0.20' into 10.0-FusionIO10.0-FusionIO
Conflicts:
storage/innobase/os/os0file.cc
storage/xtradb/os/os0file.cc
storage/xtradb/srv/srv0start.cc
Diffstat (limited to 'mysql-test/t/selectivity.test')
| -rw-r--r-- | mysql-test/t/selectivity.test | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/mysql-test/t/selectivity.test b/mysql-test/t/selectivity.test index 77ee5f49bef..c46ff69295f 100644 --- a/mysql-test/t/selectivity.test +++ b/mysql-test/t/selectivity.test @@ -942,5 +942,34 @@ set optimizer_use_condition_selectivity=@save_optimizer_use_condition_selectivit drop table t0,t1,t2; +--echo # +--echo # Bug mdev-7316: a conjunct in WHERE with selectivity == 0 +--echo # + +CREATE TABLE t1 (a varchar(16), b int, PRIMARY KEY(a), KEY(b)) ENGINE=INNODB; +INSERT INTO t1 VALUES + ('USAChinese',10), ('USAEnglish',20), ('USAFrench',30); + +CREATE TABLE t2 (i int) ENGINE=INNODB; +INSERT INTO t2 VALUES + (1),(2),(3),(4),(5),(6),(7),(8),(9),(10),(1),(2),(3),(4); + +ANALYZE TABLE t1, t2; + +set use_stat_tables='preferably'; +set optimizer_use_condition_selectivity=3; + +EXPLAIN EXTENDED +SELECT * FROM t1, t2 + WHERE a <> 'USARussian' AND b IS NULL; + +SELECT * FROM t1, t2 + WHERE a <> 'USARussian' AND b IS NULL; + +set optimizer_use_condition_selectivity=@save_optimizer_use_condition_selectivity; + +DROP TABLE t1,t2; + + set use_stat_tables=@save_use_stat_tables; |