beliefer commented on a change in pull request #30387:
URL: https://github.com/apache/spark/pull/30387#discussion_r543863851
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File path:
sql/core/src/main/scala/org/apache/spark/sql/execution/window/WindowExecBase.scala
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@@ -116,13 +116,17 @@ trait WindowExecBase extends UnaryExecNode {
* [[WindowExpression]]s and factory function for the
[[WindowFrameFunction]].
*/
protected lazy val windowFrameExpressionFactoryPairs = {
- type FrameKey = (String, FrameType, Expression, Expression)
+ type FrameKey = (String, FrameType, Expression, Expression, Expression)
type ExpressionBuffer = mutable.Buffer[Expression]
val framedFunctions = mutable.Map.empty[FrameKey, (ExpressionBuffer,
ExpressionBuffer)]
// Add a function and its function to the map for a given frame.
def collect(tpe: String, fr: SpecifiedWindowFrame, e: Expression, fn:
Expression): Unit = {
- val key = (tpe, fr.frameType, fr.lower, fr.upper)
+ val key = fn match {
+ case f: FrameLessOffsetWindowFunction if f.ignoreNulls =>
+ (tpe, fr.frameType, fr.lower, fr.upper, f.canonicalized)
Review comment:
Thanks for your suggestion.
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