Haisheng Yuan created CALCITE-3886:
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Summary: Execute substitution rule according to the order they get
matched
Key: CALCITE-3886
URL: https://issues.apache.org/jira/browse/CALCITE-3886
Project: Calcite
Issue Type: Improvement
Components: core
Reporter: Haisheng Yuan
Currently the substitution rule is always appended to the head of the queue. We
prefer to executing the rule according to the order they get matched. So we
need a separate queue for substitution rule matches.
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