wangyum commented on a change in pull request #26589: [SPARK-29947][SQL]
Improve ResolveRelations performance
URL: https://github.com/apache/spark/pull/26589#discussion_r361780484
##########
File path:
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/analysis/Analyzer.scala
##########
@@ -847,21 +847,32 @@ class Analyzer(
case _ => plan
}
- def apply(plan: LogicalPlan): LogicalPlan =
ResolveTempViews(plan).resolveOperatorsUp {
- case i @ InsertIntoStatement(table, _, _, _, _) if i.query.resolved =>
- val relation = table match {
- case u @ UnresolvedRelation(SessionCatalogAndIdentifier(catalog,
ident)) =>
- lookupRelation(catalog, ident, recurse = false).getOrElse(u)
- case other => other
- }
+ def apply(plan: LogicalPlan): LogicalPlan = {
+ var logicalPlans = Map.empty[UnresolvedRelation, LogicalPlan]
Review comment:
Add comment to doc:
https://github.com/apache/spark/blob/07e6b7f7529f07a73dae9baede5e2046a18e35bc/sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/analysis/Analyzer.scala#L94-L96
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