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| author | Marko Mäkelä <marko.makela@mariadb.com> | 2018-08-16 10:08:30 +0300 |
|---|---|---|
| committer | Marko Mäkelä <marko.makela@mariadb.com> | 2018-08-16 10:08:30 +0300 |
| commit | 734db318ac69f60959bcd0d6c9116a3681449a38 (patch) | |
| tree | cb8ccd4ecfebe752ec559834d3bf083efb9c8cd4 /mysql-test/main/subselect_no_mat.result | |
| parent | b151cc2b0b1fc938de91035fbafc46667d9019e3 (diff) | |
| parent | 8716bb3b72b7f5fed69b6dde413c2138f6d175b2 (diff) | |
| download | mariadb-git-734db318ac69f60959bcd0d6c9116a3681449a38.tar.gz | |
Merge 10.3 into 10.4
Diffstat (limited to 'mysql-test/main/subselect_no_mat.result')
| -rw-r--r-- | mysql-test/main/subselect_no_mat.result | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/mysql-test/main/subselect_no_mat.result b/mysql-test/main/subselect_no_mat.result index 2e9caf22ca0..f766f5b6d6a 100644 --- a/mysql-test/main/subselect_no_mat.result +++ b/mysql-test/main/subselect_no_mat.result @@ -7230,6 +7230,22 @@ a 5 SET @@optimizer_switch= @optimiser_switch_save; DROP TABLE t1, t2, t3; +# +# MDEV-16820: impossible where with inexpensive subquery +# +create table t1 (a int) engine=myisam; +insert into t1 values (3), (1), (7); +create table t2 (b int, index idx(b)); +insert into t2 values (2), (5), (3), (2); +explain select * from t1 where (select max(b) from t2) = 10; +id select_type table type possible_keys key key_len ref rows Extra +1 PRIMARY NULL NULL NULL NULL NULL NULL NULL Impossible WHERE +2 SUBQUERY NULL NULL NULL NULL NULL NULL NULL Select tables optimized away +explain select * from t1 where (select max(b) from t2) = 10 and t1.a > 3; +id select_type table type possible_keys key key_len ref rows Extra +1 PRIMARY NULL NULL NULL NULL NULL NULL NULL Impossible WHERE +2 SUBQUERY NULL NULL NULL NULL NULL NULL NULL Select tables optimized away +drop table t1,t2; End of 5.5 tests # End of 10.0 tests # |