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| author | unknown <sergefp@mysql.com> | 2004-09-08 22:43:37 +0400 |
|---|---|---|
| committer | unknown <sergefp@mysql.com> | 2004-09-08 22:43:37 +0400 |
| commit | 4233d901f4d6a5b29f2ee944f96c6d3734531c81 (patch) | |
| tree | 194bf8f56014bed101be7ac1d5ebc6c3770cf9cb /mysql-test/t/group_by.test | |
| parent | 3f70b62cebfbaa0e93ea5f378167d9d3e7b02a91 (diff) | |
| download | mariadb-git-4233d901f4d6a5b29f2ee944f96c6d3734531c81.tar.gz | |
Fix for bug#5400 "GROUP_CONCAT returns everything twice":
Don't evaluate the value of GROUP_CONCAT several times for the same 'group', reuse the value instead.
mysql-test/r/group_by.result:
Testcase for bug#5400
mysql-test/t/group_by.test:
Testcase for bug#5400
Diffstat (limited to 'mysql-test/t/group_by.test')
| -rw-r--r-- | mysql-test/t/group_by.test | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/mysql-test/t/group_by.test b/mysql-test/t/group_by.test index d6d1922c10f..59983594c32 100644 --- a/mysql-test/t/group_by.test +++ b/mysql-test/t/group_by.test @@ -456,3 +456,12 @@ INSERT INTO t1 VALUES (1,2),(2,3),(4,5),(3,5),(1,5),(23,5); SELECT i, COUNT(DISTINCT(i)) FROM t1 GROUP BY j ORDER BY NULL; explain SELECT i, COUNT(DISTINCT(i)) FROM t1 GROUP BY j ORDER BY NULL; DROP TABLE t1; + +# Test for BUG#5400: GROUP_CONCAT returns everything twice. +create table t1 ( col1 int, col2 int ); +insert into t1 values (1,1),(1,2),(1,3),(2,1),(2,2); +select group_concat( distinct col1 ) as alias from t1 + group by col2 having alias like '%'; + +drop table t1; + |