[jira] Created: (HIVE-942) use bucketing for group by

[Namit Jain (JIRA)]

use bucketing for group by
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                 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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