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Posted to dev@calcite.apache.org by "godfrey he (JIRA)" <ji...@apache.org> on 2019/07/03 07:40:00 UTC

[jira] [Created] (CALCITE-3171) RelOptUtil#pushDownJoinConditions should handle SEMI/ANTI join specially about project shift mapping

godfrey he created CALCITE-3171:
-----------------------------------

             Summary: RelOptUtil#pushDownJoinConditions should handle SEMI/ANTI join specially about project shift mapping
                 Key: CALCITE-3171
                 URL: https://issues.apache.org/jira/browse/CALCITE-3171
             Project: Calcite
          Issue Type: Bug
          Components: core
    Affects Versions: 1.19.0
            Reporter: godfrey he



the following code in RelOptUtil#pushDownJoinConditions only does not consider SEMI/ANTI join
{code:java}
    if (!extraLeftExprs.isEmpty() || !extraRightExprs.isEmpty()) {
      Mappings.TargetMapping mapping =
          Mappings.createShiftMapping(
              leftCount + extraLeftExprs.size()
                  + rightCount + extraRightExprs.size(),
              0, 0, leftCount,
              leftCount, leftCount + extraLeftExprs.size(), rightCount);
      relBuilder.project(relBuilder.fields(mapping.inverse()));
    }
{code}




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