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From "Kathey Marsden (JIRA)" <derby-...@db.apache.org>
Subject [jira] Commented: (DERBY-280) Wrong result from select when aliasing to same name as used in group by
Date Wed, 30 Nov 2005 17:50:31 GMT
    [ http://issues.apache.org/jira/browse/DERBY-280?page=comments#action_12358932 ] 

Kathey Marsden commented on DERBY-280:
--------------------------------------

I was wondering was there another bug filed for the regression introduced by the patch?  I
did not see one linked to this issue.


> Wrong result from select when aliasing to same name as used in group by
> -----------------------------------------------------------------------
>
>          Key: DERBY-280
>          URL: http://issues.apache.org/jira/browse/DERBY-280
>      Project: Derby
>         Type: Bug
>   Components: SQL
>     Reporter: Bernt M. Johnsen
>     Assignee: Rick Hillegas
>     Priority: Minor
>  Attachments: bug280.diff
>
> Wrong result from select when aliasing to same name as used in group by. Example:
> If we have the following table:
>     ij> select * from tt;
>     I          |J
>     -----------------------
>     1          |2
>     2          |3
>     1          |2
>     2          |3
>     2          |3
>                                                                                     
                                                        
>     5 rows selected
> The following select is ok:
>     ij> select i, count(*) as cnt from tt group by i;
>     I          |CNT
>     -----------------------
>     1          |2
>     2          |3
>                                                                                     
                                                        
>     2 rows selected
> But this one returns wrong result in the aliased column:
>     ij> select i, count(*) as i from tt group by i;
>     I          |I
>     -----------------------
>     1          |1
>     2          |2
>                                                                                     
                                                        
>     2 rows selected
>                                                                                     
                                                        

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