hsyuan commented on a change in pull request #1860: [CALCITE-2970] Add
abstractConverter only between derived and required traitset
URL: https://github.com/apache/calcite/pull/1860#discussion_r400953759
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File path: core/src/main/java/org/apache/calcite/plan/volcano/RelSubset.java
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@@ -98,10 +100,13 @@
long timestamp;
/**
- * Flag indicating whether this RelSubset's importance was artificially
- * boosted.
+ * Physical property state of current subset
+ * 0: logical operators, NONE convention is neither DERIVED nor REQUIRED
+ * 1: traitSet DERIVED from child operators or itself
+ * 2: traitSet REQUIRED from parent operators
+ * 3: both DERIVED and REQUIRED
*/
- boolean boosted;
+ int state = 0;
Review comment:
Fixed, thanks.
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