[jira] Commented: (DERBY-883) Enhance GROUP BY clause to support expressions instead of just column references.

["Yip Ng (JIRA)" <de...@db.apache.org>]

    [ http://issues.apache.org/jira/browse/DERBY-883?page=comments#action_12427044 ] 
            
Yip Ng commented on DERBY-883:
------------------------------

Thanks for continuing to improve the patch, Manish.  The changes look good to me and I think this patch is ready for commit.  +1

> Enhance GROUP BY clause to support expressions instead of just column references.
> ---------------------------------------------------------------------------------
>
>                 Key: DERBY-883
>                 URL: http://issues.apache.org/jira/browse/DERBY-883
>             Project: Derby
>          Issue Type: New Feature
>          Components: SQL
>    Affects Versions: 10.1.2.1
>         Environment: JDK 1.5.0_05
>            Reporter: Lluis Turro
>         Assigned To: Manish Khettry
>         Attachments: 883.patch.txt, 883.patch3.txt, 883.patch4.txt, 883.patch5.txt
>
>
> This select would return an error syntax on finding "(" after month if group by clause:
> select idissue, month(creation), year(creation), count(distinct idissue)
> where 
>   ....
> group by idissue, month(creation), year(creation)

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