cloud-fan commented on code in PR #43385:
URL: https://github.com/apache/spark/pull/43385#discussion_r1363848349
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sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/optimizer/InferWindowGroupLimit.scala:
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@@ -52,6 +52,16 @@ object InferWindowGroupLimit extends Rule[LogicalPlan] with
PredicateHelper {
if (limits.nonEmpty) Some(limits.min) else None
}
+ /**
+ * Require other window functions to have the same window frame as the
rank-like functions.
+ */
+ private def satisfySpecifiedWindowFrame(
Review Comment:
I think `isExpandingWindow` is a better name
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