cloud-fan commented on code in PR #43869:
URL: https://github.com/apache/spark/pull/43869#discussion_r1400526483
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sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/expressions/predicates.scala:
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@@ -356,6 +356,8 @@ case class Not(child: Expression)
case class InSubquery(values: Seq[Expression], query: ListQuery)
extends Predicate with Unevaluable {
+ assert(query.plan.output.nonEmpty, "The subquery must have output.")
Review Comment:
I mean adding an assert in `RowLevelOperationRuntimeGroupFiltering`, where
we create `InSubquery`...
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