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From "Ashutosh Chauhan (JIRA)" <>
Subject [jira] [Updated] (HIVE-4606) Implement vector group by hash spill
Date Tue, 11 Jun 2013 21:42:20 GMT


Ashutosh Chauhan updated HIVE-4606:

    Resolution: Fixed
        Status: Resolved  (was: Patch Available)

Committed to branch. Thanks, Remus!
> Implement vector group by hash spill
> ------------------------------------
>                 Key: HIVE-4606
>                 URL:
>             Project: Hive
>          Issue Type: Sub-task
>          Components: Query Processor
>    Affects Versions: vectorization-branch
>            Reporter: Remus Rusanu
>            Assignee: Remus Rusanu
>             Fix For: vectorization-branch
>         Attachments: HIVE-4606.1.patch.txt, HIVE-4606.2.patch.txt, HIVE-4606.3.patch.txt
> the row mode GBy operator is capable of spilling the hash map (by emitting it into the
M/R and deleting the keys emitted) to conform to emmory constraints. The VGBy should be able
to do the same.

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