Github user liancheng commented on a diff in the pull request:
https://github.com/apache/spark/pull/5129#discussion_r26913115
--- Diff:
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/analysis/CheckAnalysis.scala
---
@@ -85,14 +85,19 @@ class CheckAnalysis {
cleaned.foreach(checkValidAggregateExpression)
+ case _ => // Fallbacks to the following checks
+ }
+
+ operator match {
case o if o.children.nonEmpty &&
--- End diff --
@chenghao-intel Thanks for the explanation, actually I didn't know what it
is while writing this PR :)
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