danny0405 commented on issue #1543: [CALCITE-3455] Redundant rule firing for both logical and physical nodes URL: https://github.com/apache/calcite/pull/1543#issuecomment-547704840 Quotes Julian's comment in the mailing list: > Is there a change we could make to the rule API that would make it easier to customize rules? I have been thinking for a while about adding an “operand builder” to replace the static methods (e.g. RelOptRule.operandJ) that we use to build the operands inside rules. Maybe as part of this change, we could allow rules to clone themselves with slightly different parameters. >I’m interested in hearing about a “big change” that would save us from a myriad of small changes in the coming years. I'm also expecting if we can make more effort to do a bigger refactoring to make the RelOptRule customization more easier.
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