cloud-fan commented on a change in pull request #26214: [SPARK-29558][SQL]
ResolveTables and ResolveRelations should be order-insensitive
URL: https://github.com/apache/spark/pull/26214#discussion_r349409977
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File path:
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/analysis/Analyzer.scala
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@@ -666,12 +665,26 @@ class Analyzer(
}
/**
- * Resolve table relations with concrete relations from v2 catalog.
+ * Resolve relations to temp views. This is not an actual rule, and is only
called by
+ * [[ResolveTables]].
+ */
+ object ResolveTempViews extends Rule[LogicalPlan] {
+ def apply(plan: LogicalPlan): LogicalPlan = plan.resolveOperatorsUp {
+ case u @ UnresolvedRelation(Seq(part1)) =>
+ v1SessionCatalog.lookupTempView(part1).getOrElse(u)
+ case u @ UnresolvedRelation(Seq(part1, part2)) =>
Review comment:
unfortunately, `global_temp` is not a constant, it's a static SQL conf that
users can set before starting a Spark application(not at runtime)
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