cloud-fan commented on code in PR #42036:
URL: https://github.com/apache/spark/pull/42036#discussion_r1272959723
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sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/plans/logical/basicLogicalOperators.scala:
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@@ -887,6 +887,16 @@ case class WithCTE(plan: LogicalPlan, cteDefs:
Seq[CTERelationDef]) extends Logi
}
}
+/**
+ * The logical node which is able to place the `WithCTE` node on its children.
+ */
+trait CTEInChildren extends LogicalPlan {
+ def withCTEDefs(cteDefs: Seq[CTERelationDef]): LogicalPlan = {
+ withNewChildren(children.map(WithCTE(_, cteDefs)))
Review Comment:
It seems fine to have multiple children, we just duplicate the CTE
relations. The current code does not allow it though, and go back to inline CTE.
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