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From "Khurram Faraaz (JIRA)" <j...@apache.org>
Subject [jira] [Created] (DRILL-4902) nested aggregate query does not complain about missing GROUP BY clause
Date Fri, 23 Sep 2016 06:11:20 GMT
Khurram Faraaz created DRILL-4902:
-------------------------------------

             Summary: nested aggregate query does not complain about missing GROUP BY clause
                 Key: DRILL-4902
                 URL: https://issues.apache.org/jira/browse/DRILL-4902
             Project: Apache Drill
          Issue Type: Bug
          Components: Execution - Flow
    Affects Versions: 1.9.0
            Reporter: Khurram Faraaz


A nested aggregate windowed query does not report an error when the partitioning column is
not used in the GROUP BY clause.
Drill 1.9.0

This is the correct expected behavior.
{noformat}
0: jdbc:drill:schema=dfs.tmp> select count(max(c7)) over (partition by c8) from `DRILL_4589`;
Error: VALIDATION ERROR: From line 1, column 42 to line 1, column 43: Expression 'c8' is not
being grouped

SQL Query null

[Error Id: 09c837b9-7a66-4a1f-9fbc-522160947274 on centos-01.qa.lab:31010] (state=,code=0)
{noformat}

The below query too should report above error, as the GROUP BY on partitioning column is missing.
{noformat}
0: jdbc:drill:schema=dfs.tmp> select count(max(c7)) over (partition by c8) from (select
* from `DRILL_4589`);
+---------+
| EXPR$0  |
+---------+
| 1       |
+---------+
1 row selected (193.71 seconds)
{noformat}

Postgres 9.3 also reports an error for a similar query

{noformat}
postgres=# select count(max(c1)) over (partition by c2) from (select * from t222) sub_query;
ERROR:  column "sub_query.c2" must appear in the GROUP BY clause or be used in an aggregate
function
LINE 1: select count(max(c1)) over (partition by c2) from (select * ...
{noformat}



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