[jira] [Created] (HIVE-6192) Optimize sum(1) to answer query using metadata

[Ashutosh Chauhan (JIRA)]

Ashutosh Chauhan created HIVE-6192:
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             Summary: Optimize sum(1) to answer query using metadata
                 Key: HIVE-6192
                 URL: https://issues.apache.org/jira/browse/HIVE-6192
             Project: Hive
          Issue Type: New Feature
          Components: Query Processor, Statistics
            Reporter: Ashutosh Chauhan
            Assignee: Ashutosh Chauhan


sum(1) has same semantics as count(1) so it can also be optimized in similar 
fashion by answering query using stats stored in metastore.



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