beliefer commented on code in PR #43727:
URL: https://github.com/apache/spark/pull/43727#discussion_r1389002992
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sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/analysis/CheckAnalysis.scala:
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@@ -167,25 +167,21 @@ trait CheckAnalysis extends PredicateHelper with
LookupCatalog with QueryErrorsB
val inlineCTE = InlineCTE(alwaysInline = true)
val cteMap = mutable.HashMap.empty[Long, (CTERelationDef, Int,
mutable.Map[Long, Int])]
inlineCTE.buildCTEMap(plan, cteMap)
- cteMap.values.foreach { case (relation, _, _) =>
+ val visited: mutable.Map[Long, Boolean] =
mutable.Map.empty.withDefaultValue(false)
+ cteMap.foreach { case (cteId, (relation, refCount, _)) =>
// If a CTE relation is never used, it will disappear after inline. Here
we explicitly check
// analysis for it, to make sure the entire query plan is valid.
try {
// If a CTE relation ref count is 0, the other CTE relations that
reference it
// should also be checked by checkAnalysis0. This code will also
guarantee the leaf
// relations that do not reference any others are checked first.
- val visited: mutable.Map[Long, Boolean] =
mutable.Map.empty.withDefaultValue(false)
- cteMap.foreach { case (cteId, _) =>
- val (_, refCount, _) = cteMap(cteId)
- if (refCount == 0) {
- checkUnreferencedCTERelations(cteMap, visited, cteId)
- }
+ if (refCount == 0) {
Review Comment:
It seems the test case passed.
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