Steve Carlin created HIVE-24817:
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             Summary: "not in" clause returns incorrect data when there is 
coercion
                 Key: HIVE-24817
                 URL: https://issues.apache.org/jira/browse/HIVE-24817
             Project: Hive
          Issue Type: Bug
          Components: CBO
            Reporter: Steve Carlin


When the query has a where clause that has an integer column checking against 
being "not in" a decimal column, the decimal column is being changed to null, 
causing incorrect results.

This is a sample query of a failure:
select count(*) from my_tbl where int_col not in (355.8);

Since the int_col can never be 355.8, one would expect all the rows to be 
returned, but it is changing the 355.8 into a null value causing no rows to be 
returned.



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