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From "Ashutosh Chauhan (Updated) (JIRA)" <>
Subject [jira] [Updated] (HIVE-2517) Support group by on union and struct type
Date Fri, 21 Oct 2011 18:08:35 GMT


Ashutosh Chauhan updated HIVE-2517:

    Attachment: hive-2517_1.patch

I think it doesn't make sense to do a group by on union data type since what data type it
contains varies on row by row basis. This is same as I have pointed on HIVE-2508 So, I have
stripped off bits on union type from this patch. I have left hash code still in there because
its useful for GenericUDFHash().
> Support group by on union and struct type
> -----------------------------------------
>                 Key: HIVE-2517
>                 URL:
>             Project: Hive
>          Issue Type: New Feature
>          Components: Query Processor
>            Reporter: Ashutosh Chauhan
>            Assignee: Ashutosh Chauhan
>         Attachments: hive-2517.patch, hive-2517_1.patch
> Currently group by on struct and union types are not supported. This issue will enable
support for those.

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