andreaschat-db commented on code in PR #56121:
URL: https://github.com/apache/spark/pull/56121#discussion_r3372610858
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sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/analysis/Analyzer.scala:
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@@ -2549,6 +2548,15 @@ class Analyzer(
case a: FunctionTableSubqueryArgumentExpression if !a.plan.resolved =>
resolveSubQuery(a, outer)(
(plan, outerAttrs) => a.copy(plan = plan, outerAttrs = outerAttrs))
+ // The subquery's plan is already resolved. Replace any
V2TableReferences without
+ // re-running any analyzer rules.
+ case se: SubqueryExpression
+ if se.plan.resolved &&
+ se.plan.collectFirstWithSubqueries { case _: V2TableReference
=> () }.isDefined =>
+ val newPlan = se.plan.transformWithSubqueries {
+ case r: V2TableReference => relationResolution.resolveReference(r)
Review Comment:
@gengliangwang answered this below. In short, yes. Relation cache is
maintained per query.
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