Github user viirya commented on a diff in the pull request:
https://github.com/apache/spark/pull/11298#discussion_r53902571
--- Diff:
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/analysis/Analyzer.scala
---
@@ -607,14 +607,21 @@ class Analyzer(
def apply(plan: LogicalPlan): LogicalPlan = plan resolveOperators {
// Skip sort with aggregate. This will be handled in
ResolveAggregateFunctions
case sa @ Sort(_, _, child: Aggregate) => sa
-
+ case sa @ Sort(_, _, _)
+ if sa.order.exists(so =>
ResolveAggregateFunctions.containsAggregate(so.child)) => sa
case s @ Sort(order, _, child) if !s.resolved && child.resolved =>
try {
val newOrder = order.map(resolveExpressionRecursively(_,
child).asInstanceOf[SortOrder])
val requiredAttrs = AttributeSet(newOrder).filter(_.resolved)
val missingAttrs = requiredAttrs -- child.outputSet
- if (missingAttrs.nonEmpty) {
- // Add missing attributes and then project them away after the
sort.
+ // resolve the unresolved functions for knowing if they are
aggregate functions
+ val evaluatedSort =
+ ResolveFunctions.resolveFunctions(Sort(newOrder, s.global,
child)).asInstanceOf[Sort]
+ if (evaluatedSort.order.exists(so =>
+ ResolveAggregateFunctions.containsAggregate(so.child))) {
+ // Skip sort with aggregate. This will be handled in
ResolveAggregateFunctions
+ s.copy(order = evaluatedSort.order)
+ } else if (missingAttrs.nonEmpty) {
--- End diff --
nevermind. I got it.
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