Gopal V created HIVE-11428:
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             Summary: Performance: Struct IN() clauses are extremely slow (~10x 
slower) 
                 Key: HIVE-11428
                 URL: https://issues.apache.org/jira/browse/HIVE-11428
             Project: Hive
          Issue Type: Bug
          Components: Query Processor
    Affects Versions: 1.3.0, 2.0.0
            Reporter: Gopal V


Hive today does not support tuple IN() clauses today, but provides a way to 
rewrite (a,b) IN (...) using complex types.

select * from table where STRUCT(a,b) IN (STRUCT(1,2), STRUCT(2,3) ...);

This would be fine, except it is massively slower due to ObjectConvertors and 
Struct constructor not being constant folded.



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