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From "Namit Jain (JIRA)" <j...@apache.org>
Subject [jira] Created: (HIVE-942) use bucketing for group by
Date Thu, 19 Nov 2009 00:17:39 GMT
use bucketing for group by
--------------------------

                 Key: HIVE-942
                 URL: https://issues.apache.org/jira/browse/HIVE-942
             Project: Hadoop Hive
          Issue Type: New Feature
          Components: Query Processor
            Reporter: Namit Jain
            Assignee: He Yongqiang
             Fix For: 0.5.0


Group by on a bucketed column can be completely performed on the mapper if the split can be
adjusted to span the key boundary.

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