Github user gatorsmile commented on a diff in the pull request:
https://github.com/apache/spark/pull/14546#discussion_r74353994
--- Diff:
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/analysis/Analyzer.scala
---
@@ -1252,7 +1257,9 @@ class Analyzer(
case ae: AnalysisException => filter
}
- case sort @ Sort(sortOrder, global, aggregate: Aggregate) if
aggregate.resolved =>
+ case sort @ Sort(sortOrder, global, aggregate: Aggregate) if
aggregate.resolved &&
+ sortOrder.forall(x => IntegerIndex.unapply(x.child).isEmpty) =>
+ // If there exists ordinal sort orders, it's not resolved
completely yet. See SPARK-16955.
--- End diff --
Normally, we put the comment above the statement.
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