P1-[4.0 Bug Hunting]-[Full group by violation]-query with missing column in group by is executed
Opened this issue · 1 comments
zhangysh1995 commented
Bug Report
1. What did you do?
drop table if exists t1;
create table t1 (a int, b int);
insert into t1 values (4, 40), (1, 10), (2, 20), (2, 20), (3, 30);
select (select t1.a) aa, count(distinct b) from t1 group by b;
2. What did you expect to see?
mysql> select (select t1.a) aa, count(distinct b) from t1 group by b;
ERROR 1055 (42000): Expression #1 of SELECT list is not in GROUP BY clause and contains nonaggregated column 'testing.t1.a' which is not functionally dependent on columns in GROUP BY clause; this is incompatible with sql_mode=only_full_group_by
3. What did you see instead?
mysql> select (select t1.a) aa, count(distinct b) from t1 group by b;
+------+-------------------+
| aa | count(distinct b) |
+------+-------------------+
| 4 | 1 |
| 1 | 1 |
| 2 | 1 |
| 3 | 1 |
+------+-------------------+
4 rows in set (0.00 sec)
4. What version of TiDB are you using? (tidb-server -V
or run select tidb_version();
on TiDB)
commit 8369ffd500f3fb235d8b584ac4298b2e59d8db55 (HEAD -> master, origin/master, origin/HEAD)
Author: Soup <ilovesoup@gmail.com>
Date: Tue May 26 15:38:29 2020 +0800
mysql> select tidb_version();
+------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| tidb_version() |
+------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| Release Version: None
Edition: None
Git Commit Hash: None
Git Branch: None
UTC Build Time: None
GoVersion: go1.13.4
Race Enabled: false
TiKV Min Version: v3.0.0-60965b006877ca7234adaced7890d7b029ed1306
Check Table Before Drop: false |
+------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
1 row in set (0.00 sec)
shuke987 commented
/bug P1