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Posted to dev@hive.apache.org by "Matt McCline (JIRA)" <ji...@apache.org> on 2015/03/02 07:45:06 UTC

[jira] [Created] (HIVE-9824) LLAP: Native Vectorization of Map Join so previously CPU bound queries shift their bottleneck to I/O and make it possible for the rest of LLAP to shine ;)

Matt McCline created HIVE-9824:
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             Summary: LLAP: Native Vectorization of Map Join so previously CPU bound queries shift their bottleneck to I/O and make it possible for the rest of LLAP to shine ;)
                 Key: HIVE-9824
                 URL: https://issues.apache.org/jira/browse/HIVE-9824
             Project: Hive
          Issue Type: Sub-task
            Reporter: Matt McCline
            Assignee: Matt McCline
            Priority: Critical


Today's VectorMapJoinOperator is a pass-through that converts each row from a vectorized row batch in a Java Object[] row and passes it to the MapJoinOperator superclass.

This enhancement creates specialized vectorized map join operator classes that are optimized.



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