[jira] [Commented] (FLINK-3567) Rework selection when grouping in Table API

["ASF GitHub Bot (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/FLINK-3567?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15179596#comment-15179596 ] 

ASF GitHub Bot commented on FLINK-3567:
---------------------------------------

GitHub user fhueske opened a pull request:

    https://github.com/apache/flink/pull/1761

    [FLINK-3567] Fix selection on grouping. Only grouping keys or aggregates allowed.

    

You can merge this pull request into a Git repository by running:

    $ git pull https://github.com/fhueske/flink tableGrouping

Alternatively you can review and apply these changes as the patch at:

    https://github.com/apache/flink/pull/1761.patch

To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:

    This closes #1761
    
----
commit 3665f3c5c4dd7681f01d1df7d0e126d932bc893e
Author: Fabian Hueske <fh...@apache.org>
Date:   2016-03-04T08:51:19Z

    [FLINK-3567] Fix selection on grouping. Only grouping keys or aggregates allowed.

----


> Rework selection when grouping in Table API
> -------------------------------------------
>
>                 Key: FLINK-3567
>                 URL: https://issues.apache.org/jira/browse/FLINK-3567
>             Project: Flink
>          Issue Type: Bug
>          Components: Table API
>            Reporter: Timo Walther
>            Assignee: Fabian Hueske
>
> {code}table.groupBy("a").select("e"){code}
> does not throw any exception.
> Fabian looked at the implementation of GroupedTable.select() and it looks incorrect. It does not group but just add a selection. Either we should reject the select or select the value an arbitrary row of the group.



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