[jira] Resolved: (DERBY-765) Valid query fails with ERROR X0A00: The select list mentions column 'A' twice...

["Myrna van Lunteren (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/DERBY-765?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Myrna van Lunteren resolved DERBY-765.
--------------------------------------

       Resolution: Fixed
    Fix Version/s: 10.2.2.0
         Assignee: Rick Hillegas
       Derby Info: [Existing Application Impact, Regression, Release Note Needed]  (was: [Regression, Release Note Needed, Existing Application Impact])

I am closing this issue as being resolved with 10.2.2.0 (could be 10.2.1.6).
>From the comments, it appears this was specifically entered to get a release note.
Also from the comments, it appears the actual bug was DERBY-681, which has been fixed (in 10.3-trunk).
I'm assigning it to Rick, as he's the one who added the release note comment.

> Valid query fails with ERROR X0A00: The select list mentions column 'A' twice...
> --------------------------------------------------------------------------------
>
>                 Key: DERBY-765
>                 URL: https://issues.apache.org/jira/browse/DERBY-765
>             Project: Derby
>          Issue Type: Bug
>          Components: SQL
>    Affects Versions: 10.2.1.6
>            Reporter: Kathey Marsden
>            Assignee: Rick Hillegas
>            Priority: Minor
>             Fix For: 10.2.2.0
>
>
> The following query is valid but fails with 10.2 
> ij> create table bug280
> (
>    a int,
>    b int
> );
> 0 rows inserted/updated/deleted
> ij> insert into bug280( a, b )
> values ( 1, 1 ), ( 1, 2 ), ( 1, 3 ), ( 2, 1 ), ( 2, 2 );
> 5 rows inserted/updated/deleted
> ij> select a+1 as a, a+1 as a from bug280 group by a;
> ERROR X0A00: The select list mentions column 'A' twice. This is not allowed in queries with GROUP BY or HAVING clauses. Try aliasing one of the conflicting columns to a unique name.

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