cloud-fan commented on code in PR #54126:
URL: https://github.com/apache/spark/pull/54126#discussion_r2838200385
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sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/analysis/CheckAnalysis.scala:
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@@ -457,7 +457,27 @@ trait CheckAnalysis extends LookupCatalog with
QueryErrorsBase with PlanToString
WindowResolution.validateResolvedWindowExpression(w)
case s: SubqueryExpression =>
- checkSubqueryExpression(operator, s)
+ // Check if this subquery is inside a generated column expression
Review Comment:
where do we check subquery expressions for other unsupported operators?
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