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  1. Calcite
  2. CALCITE-3927

RelSubset is not fired for rule when set gets merged

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      In VolcanoPlanner, when set gets merged, planner fires rules again for RelNodes in both sets, but not for RelSubset. We might miss something because of this.

      If all the logical transformation rules and physical implementation rules are separated out in different stage and physical rules don't do logical work, we might be OK. But the reality is that all the things are mixed together at the moment.

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            Unassigned Unassigned
            hyuan Haisheng Yuan
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