cloud-fan commented on a change in pull request #33284:
URL: https://github.com/apache/spark/pull/33284#discussion_r670986437
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File path:
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/plans/QueryPlan.scala
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@@ -435,6 +435,28 @@ abstract class QueryPlan[PlanType <: QueryPlan[PlanType]]
subqueries ++ subqueries.flatMap(_.subqueriesAll)
}
+ /**
+ * Returns a copy of this node where the given partial function has been
recursively applied
+ * first to this node's children, then this node's subqueries, and finally
this node itself
Review comment:
I think this doc is wrong. We apply the func to subqueries first, then
children, then the node itself.
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