EnricoMi commented on code in PR #39754:
URL: https://github.com/apache/spark/pull/39754#discussion_r1699637556
##########
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/analysis/Analyzer.scala:
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@@ -3468,6 +3448,52 @@ class Analyzer(override val catalogManager:
CatalogManager) extends RuleExecutor
}
}
+ /**
+ * Restricts the scope of resolving some expressions.
+ */
+ object ScopeExpressions extends Rule[LogicalPlan] {
+ private def scopeOrder(scope: Seq[Attribute])(sortOrder: SortOrder):
SortOrder = {
+ sortOrder match {
+ case so if so.child.isInstanceOf[ScopedExpression] => so
+ case so => so.copy(child = ScopedExpression(so.child, scope))
Review Comment:
Added in e53c7a2166b5f9b25bd7624f5cbb8276be3e0585.
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