Vineet Garg created HIVE-20867:
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             Summary: Rewrite INTERSECT into LEFT SEMI JOIN instead of UNION + 
Group by
                 Key: HIVE-20867
                 URL: https://issues.apache.org/jira/browse/HIVE-20867
             Project: Hive
          Issue Type: Improvement
          Components: Query Planning
    Affects Versions: 4.0.0
            Reporter: Vineet Garg
            Assignee: Vineet Garg






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