cloud-fan commented on a change in pull request #29156:
URL: https://github.com/apache/spark/pull/29156#discussion_r458941369
##########
File path:
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/analysis/ResolveHints.scala
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@@ -165,6 +165,24 @@ object ResolveHints {
hintErrorHandler.hintRelationsNotFound(h.name, h.parameters,
unmatchedIdents)
applied
}
+ case With(child, relations) => resolveCTEHint(child,
+ relations.foldLeft(Seq.empty[(String, LogicalPlan)]) {
+ case (resolved, (name, relation)) =>
+ resolved :+ name -> apply(resolveCTEHint(relation, resolved))
+ })
+ }
+
+ def resolveCTEHint(plan: LogicalPlan, cteRelations: Seq[(String,
LogicalPlan)]): LogicalPlan = {
+ plan resolveOperatorsDown {
+ case u: UnresolvedRelation =>
+ cteRelations.find(x => resolver(x._1,
u.tableName)).map(_._2).getOrElse(u)
Review comment:
Have you looked at https://github.com/apache/spark/pull/29062 ? Seems
easier to just run CTE substitution in the very beginning.
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