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| author | unknown <evgen@moonbone.local> | 2005-09-15 21:34:11 +0400 |
|---|---|---|
| committer | unknown <evgen@moonbone.local> | 2005-09-15 21:34:11 +0400 |
| commit | 36d163d6cf1f4ce522e081c378129f9723760d15 (patch) | |
| tree | 0129651e804ae774cb6aa27282c6ebf228c4377b /mysql-test/t/olap.test | |
| parent | 02fce1c316e7a33748eb7ccf13a49fbaa2926ee6 (diff) | |
| download | mariadb-git-36d163d6cf1f4ce522e081c378129f9723760d15.tar.gz | |
Fix bug#12887 Distinct is not always applied after rollup
For queries with GROUP BY and without hidden GROUP BY fields DISTINCT is
optimized away becuase such queries produce result set without duplicates.
But ROLLUP can add rows which may be same to some rows and this fact was
ignored.
Added check so if ROLLUP is present DISTINCT can't be optimized away.
sql/sql_select.cc:
Fix bug #12887 Distinct is not always applied after rollup
mysql-test/r/olap.result:
Test case for bug #12887 Distinct is not always applied after rollup
mysql-test/t/olap.test:
Test case for bug #12887 Distinct is not always applied after rollup
Diffstat (limited to 'mysql-test/t/olap.test')
| -rw-r--r-- | mysql-test/t/olap.test | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/mysql-test/t/olap.test b/mysql-test/t/olap.test index 76c62d14621..4f9790b0de6 100644 --- a/mysql-test/t/olap.test +++ b/mysql-test/t/olap.test @@ -263,4 +263,13 @@ SELECT * FROM (SELECT a, LENGTH(a), COUNT(*) FROM t1 GROUP BY a WITH ROLLUP) t; DROP TABLE t1; +# +# Bug #12887 Distinct is not always applied after rollup +# +create table t1 ( a varchar(9), b int ); +insert into t1 values('a',1),(null,2); +select a, max(b) from t1 group by a with rollup; +select distinct a, max(b) from t1 group by a with rollup; +drop table t1; + # End of 4.1 tests |