cloud-fan commented on a change in pull request #26589: [SPARK-29947][SQL]
Improve ResolveRelations performance
URL: https://github.com/apache/spark/pull/26589#discussion_r362442490
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File path:
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/analysis/Analyzer.scala
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@@ -861,7 +865,13 @@ class Analyzer(
case other => i.copy(table = other)
}
- case u: UnresolvedRelation => resolveRelation(u)
+ case u: UnresolvedRelation =>
+ val relationToLogicalPlanMaps =
AnalysisContext.get.relationToLogicalPlanMaps
+ relationToLogicalPlanMaps.getOrElse(u, {
Review comment:
I think it's safer to use the qualified table name as the key, i.e. after
calling `withNewNamespace`
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