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From "Matt McCline (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HIVE-11386) Improve Vectorized GROUP BY Performance (Phase 1)
Date Wed, 29 Jul 2015 21:30:04 GMT

     [ https://issues.apache.org/jira/browse/HIVE-11386?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Matt McCline updated HIVE-11386:
--------------------------------
    Attachment: HIVE-11386.02.patch

> Improve Vectorized GROUP BY Performance (Phase 1)
> -------------------------------------------------
>
>                 Key: HIVE-11386
>                 URL: https://issues.apache.org/jira/browse/HIVE-11386
>             Project: Hive
>          Issue Type: Bug
>          Components: Hive
>            Reporter: Matt McCline
>            Assignee: Matt McCline
>            Priority: Critical
>         Attachments: HIVE-11386.01.patch, HIVE-11386.02.patch
>
>
> Improve vectorized GROUP BY performance, with an eye towards the new LLAP memory management
(dramatically reduce the number of Java object, allocate very large objects, etc).



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