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From "Bernt M. Johnsen (JIRA)" <j...@apache.org>
Subject [jira] Created: (DERBY-4371) Non-selected columns for SELECT DISTINCT allowed in ORDER BY clause if ordered by expression
Date Mon, 07 Sep 2009 11:33:57 GMT
Non-selected columns for SELECT DISTINCT allowed in ORDER BY clause if ordered by expression
--------------------------------------------------------------------------------------------

                 Key: DERBY-4371
                 URL: https://issues.apache.org/jira/browse/DERBY-4371
             Project: Derby
          Issue Type: Bug
          Components: SQL
    Affects Versions: 10.5.1.1
            Reporter: Bernt M. Johnsen


How to repeat:

ij> create table t (i integer, j integer);;
0 rows inserted/updated/deleted
ij> insert into t values (1,2),(1,3);
2 rows inserted/updated/deleted
ij> select distinct i from t order by j;
ERROR 42879: The ORDER BY clause may not contain column 'J', since the query specifies DISTINCT
and that column does not appear in the query result.
ij> select distinct i from t order by j*2;
I          
-----------
1          
1          

2 rows selected


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