Github user cloud-fan commented on a diff in the pull request:
https://github.com/apache/spark/pull/5604#discussion_r55140466
--- Diff:
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/plans/logical/basicOperators.scala
---
@@ -195,9 +202,28 @@ case class Aggregate(
child: LogicalPlan)
extends UnaryNode {
+ override lazy val resolved: Boolean = {
+ val hasWindowExpressions = aggregateExpressions.exists ( _.collect {
+ case window: WindowExpression => window
+ }.nonEmpty
+ )
+
+ !expressions.exists(!_.resolved) && childrenResolved &&
!hasWindowExpressions
+ }
+
override def output: Seq[Attribute] =
aggregateExpressions.map(_.toAttribute)
}
+case class Window(
+ projectList: Seq[Attribute],
--- End diff --
Why we need a `projectList` in `Window`? Isn't it always equal to
`child.output`?
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