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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