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Posted to issues@calcite.apache.org by "Vitalii Diravka (JIRA)" <ji...@apache.org> on 2018/07/11 13:00:04 UTC

[jira] [Created] (CALCITE-2410) Enable ProjectSetOpTransposeRule for UNION (distinct) SetOp operator

Vitalii Diravka created CALCITE-2410:
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             Summary: Enable ProjectSetOpTransposeRule for UNION (distinct) SetOp operator
                 Key: CALCITE-2410
                 URL: https://issues.apache.org/jira/browse/CALCITE-2410
             Project: Calcite
          Issue Type: Improvement
          Components: core
    Affects Versions: 1.16.0
            Reporter: Vitalii Diravka
            Assignee: Vitalii Diravka
             Fix For: 1.17.0


Currently {{ProjectSetOpTransposeRule}} rule can transpose UnionAll SetOp and Project RelNodes. It disabled for Union (distinct) SetOp operator.
{code}

// cannot push project past a distinct
if (!setOp.all) {
 return;
}

{code}

After removing this check the rule works fine and transposes Union (distinct) SetOp and Project RelNodes. 



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