danny0405 commented on code in PR #2839:
URL: https://github.com/apache/calcite/pull/2839#discussion_r903551757
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core/src/main/java/org/apache/calcite/plan/volcano/RelSubset.java:
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@@ -302,22 +302,6 @@ Set<RelNode> getParents() {
return list;
}
- /**
- * Returns the collection of distinct subsets that contain a RelNode one
- * of whose inputs is in this subset.
- */
- Set<RelSubset> getParentSubsets(VolcanoPlanner planner) {
- final Set<RelSubset> list = new LinkedHashSet<>();
- for (RelNode parent : set.getParentRels()) {
- for (RelSubset rel : inputSubsets(parent)) {
- if (rel.set == set && rel.getTraitSet().equals(traitSet)) {
Review Comment:
I'm +0 on this change, either keep or remove is fine ~
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