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Posted to dev@calcite.apache.org by "Haisheng Yuan (Jira)" <ji...@apache.org> on 2020/01/23 20:58:00 UTC

[jira] [Created] (CALCITE-3756) RelSubset should not match operand(RelNode.class)

Haisheng Yuan created CALCITE-3756:
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             Summary: RelSubset should not match operand(RelNode.class)
                 Key: CALCITE-3756
                 URL: https://issues.apache.org/jira/browse/CALCITE-3756
             Project: Calcite
          Issue Type: Bug
          Components: core
            Reporter: Haisheng Yuan


Even RelSubset is a subclass of RelNode, but they are quite different. RelNode already fires these rules, it is not necessary to fire fore RelSubset. More importantly, it never worked due to CALCITE-3755.
In addition, it will waste time to try to iterate class operands of RelSubset and try to match pattern operand(RelNode), given that it never matches when ascending.



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