hsyuan commented on a change in pull request #1991:
URL: https://github.com/apache/calcite/pull/1991#discussion_r436237723
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File path: core/src/main/java/org/apache/calcite/plan/volcano/RelSubset.java
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@@ -120,6 +121,16 @@
*/
boolean triggerRule = false;
+ /**
+ * the upper bound of the last OptimizeGroup call
+ */
+ RelOptCost upperBound;
+
+ /**
+ * RelNode ids that is invoked passThrough method before
+ */
+ Set<Integer> passThroughCache;
Review comment:
We can use RelNode here, instead of rel id, for debug-ability.
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