cloud-fan commented on code in PR #50552:
URL: https://github.com/apache/spark/pull/50552#discussion_r2058966395
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sql/core/src/main/scala/org/apache/spark/sql/execution/window/WindowFunctionFrame.scala:
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@@ -180,10 +180,20 @@ abstract class OffsetWindowFunctionFrameBase(
}
}
+ /** Indicates whether the default values are Literal values. */
+ protected lazy val onlyLiteralNulls = expressions.forall { e =>
+ e.default == null || (e.default.foldable && e.default.eval() == null)
Review Comment:
@xin-aurora do you still remember what the foldable expression was (but not
literal) that failed the test?
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