michaelbraun commented on code in PR #5272:
URL: https://github.com/apache/calcite/pull/5272#discussion_r4042947293
##########
core/src/main/java/org/apache/calcite/plan/hep/HepPlanner.java:
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@@ -749,9 +762,19 @@ private static boolean matchOperands(
RelNode rel,
List<RelNode> bindings,
Map<RelNode, List<RelNode>> nodeChildren) {
- if (!operand.matches(rel)) {
- return false;
- }
+ return operand.matches(rel)
+ && matchOperandsWithOperandMatched(operand, rel, bindings,
nodeChildren);
+ }
+
+ /**
+ * Matches the children of {@code rel} against those of {@code operand}, for
a {@code rel}
+ * that {@code operand} is already known to match.
+ */
+ private static boolean matchOperandsWithOperandMatched(
Review Comment:
I don't like the name of this method, could use help here
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