cloud-fan commented on code in PR #36503:
URL: https://github.com/apache/spark/pull/36503#discussion_r879972900
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sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/analysis/CheckAnalysis.scala:
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@@ -752,9 +752,30 @@ trait CheckAnalysis extends PredicateHelper with
LookupCatalog {
expressions.exists(_.exists(_.semanticEquals(expr)))
}
+ def checkOuterReferenceUtil(attrs: Seq[Attribute], outer: OuterReference):
Unit = {
+ if (!attrs.exists(_.exprId == outer.exprId)) {
+ failAnalysis("outer attribute not found")
+ }
+ }
+
+ def checkOuterReference(p: LogicalPlan, expr: SubqueryExpression): Unit =
p match {
+ case f: Filter =>
Review Comment:
why do we only apply the check for Filter?
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