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From "Lefty Leverenz (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HIVE-10160) Give a warning when grouping or ordering by a constant column
Date Fri, 03 Apr 2015 21:08:53 GMT

    [ https://issues.apache.org/jira/browse/HIVE-10160?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14395079#comment-14395079
] 

Lefty Leverenz commented on HIVE-10160:
---------------------------------------

Thanks for working on this, [~ychena].  I'm not qualified to review the code, so I hope someone
else will find time for it.

> Give a warning when grouping or ordering by a constant column
> -------------------------------------------------------------
>
>                 Key: HIVE-10160
>                 URL: https://issues.apache.org/jira/browse/HIVE-10160
>             Project: Hive
>          Issue Type: Improvement
>          Components: Query Processor
>            Reporter: Lefty Leverenz
>            Assignee: Yongzhi Chen
>            Priority: Minor
>         Attachments: HIVE-10160.1.patch, HIVE-10160.2.patch
>
>
> To avoid confusion, a warning should be issued when users specify column positions instead
of names in a GROUP BY or ORDER BY clause (unless hive.groupby.orderby.position.alias is set
to true in Hive 0.11.0 or later).



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