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From "Remus Rusanu (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HIVE-4606) Implement vector group by hash spill
Date Fri, 24 May 2013 08:46:21 GMT
Remus Rusanu created HIVE-4606:
----------------------------------

             Summary: Implement vector group by hash spill
                 Key: HIVE-4606
                 URL: https://issues.apache.org/jira/browse/HIVE-4606
             Project: Hive
          Issue Type: Sub-task
          Components: Query Processor
    Affects Versions: vectorization-branch
            Reporter: Remus Rusanu
            Assignee: Remus Rusanu


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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