[jira] [Commented] (HIVE-581) improve group by syntax

["Kevin Wilfong (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/HIVE-581?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13272965#comment-13272965 ] 

Kevin Wilfong commented on HIVE-581:
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https://reviews.facebook.net/D2949
                
> improve group by syntax
> -----------------------
>
>                 Key: HIVE-581
>                 URL: https://issues.apache.org/jira/browse/HIVE-581
>             Project: Hive
>          Issue Type: Improvement
>          Components: Clients, Query Processor
>            Reporter: Larry Ogrodnek
>            Assignee: Weizhe Shi
>              Labels: features
>
> It would be nice if group by allowed either column aliases or column position (like mysql).
> It can be burdensome to have to repeat UDFs both in the select and in the group by.
> e.g. instead of:
> select f1(col1), f2(col2), f3(col3), count(1) group by f1(col1), f2(col2), f3(col3);
> it would allow:
> select f1(col1), f2(col2), f3(col3), count(1) group by 1, 2, 3;

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