Github user viirya commented on a diff in the pull request: https://github.com/apache/spark/pull/19873#discussion_r155129282 --- Diff: sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/plans/logical/basicLogicalOperators.scala --- @@ -881,3 +881,10 @@ case class Deduplicate( override def output: Seq[Attribute] = child.output } + +/** A logical plan for setting a barrier of analysis */ +case class AnalysisBarrier(child: LogicalPlan) extends LeafNode { --- End diff -- Ok.
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