cloud-fan commented on code in PR #49351:
URL: https://github.com/apache/spark/pull/49351#discussion_r1913183946
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sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/analysis/ResolveWithCTE.scala:
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@@ -37,23 +39,159 @@ object ResolveWithCTE extends Rule[LogicalPlan] {
}
}
+ // Substitute CTERelationRef with UnionLoopRef.
+ private def transformRefs(plan: LogicalPlan) = {
+ plan.transformWithPruning(_.containsPattern(CTE)) {
+ case r: CTERelationRef if r.recursive =>
+ UnionLoopRef(r.cteId, r.output, false)
Review Comment:
I think the output should be the output of recursive anchor plan.
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