Github user cloud-fan commented on a diff in the pull request:
https://github.com/apache/spark/pull/16461#discussion_r94418593
--- Diff:
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/expressions/windowExpressions.scala
---
@@ -436,7 +436,6 @@ abstract class AggregateWindowFunction extends
DeclarativeAggregate with WindowF
override val frame = SpecifiedWindowFrame(RowFrame, UnboundedPreceding,
CurrentRow)
override def dataType: DataType = IntegerType
override def nullable: Boolean = true
- override def supportsPartial: Boolean = false
--- End diff --
@hvanhovell is it allowed to use aggregate window functions in normal
aggregate?
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