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From "Matt McCline (JIRA)" <>
Subject [jira] [Created] (HIVE-11386) Improve Vectorized GROUP BY Performance (Phase 1)
Date Mon, 27 Jul 2015 20:52:04 GMT
Matt McCline created HIVE-11386:

             Summary: Improve Vectorized GROUP BY Performance (Phase 1)
                 Key: HIVE-11386
             Project: Hive
          Issue Type: Bug
          Components: Hive
            Reporter: Matt McCline
            Assignee: Matt McCline
            Priority: Critical

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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