hsyuan commented on a change in pull request #1991:
URL: https://github.com/apache/calcite/pull/1991#discussion_r451810231
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File path: core/src/main/java/org/apache/calcite/plan/volcano/RelSubset.java
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@@ -128,6 +129,16 @@
*/
private boolean enforceDisabled = false;
+ /**
+ * the upper bound of the last OptimizeGroup call
+ */
+ RelOptCost upperBound;
+
+ /**
+ * RelNode ids that is invoked passThrough method before
+ */
+ Set<RelNode> passThroughCache;
Review comment:
Hmm. I think it is better to store the passThroughCache to RelSet, where
the key is the traitset, the value are relnodes.
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