[jira] [Created] (HIVE-22455) Union branch removal rule does not kick in.

[Steve Carlin (Jira)]

Steve Carlin created HIVE-22455:
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             Summary: Union branch removal rule does not kick in.
                 Key: HIVE-22455
                 URL: https://issues.apache.org/jira/browse/HIVE-22455
             Project: Hive
          Issue Type: Improvement
            Reporter: Steve Carlin


After the Calcite upgrade to 1.21, there is a rule where 2 branches of a union 
have limit 0. This can be simplified.

This can be found in: union_assertion_type.q.out



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