Github user cloud-fan commented on a diff in the pull request:
https://github.com/apache/spark/pull/13093#discussion_r64153076
--- Diff:
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/analysis/Analyzer.scala
---
@@ -441,7 +441,15 @@ class Analyzer(
object ResolveRelations extends Rule[LogicalPlan] {
private def lookupTableFromCatalog(u: UnresolvedRelation): LogicalPlan
= {
try {
- catalog.lookupRelation(u.tableIdentifier, u.alias)
+ val table = catalog.lookupRelation(u.tableIdentifier, u.alias)
+ table match {
+ case SubqueryAlias(_, s: SimpleCatalogRelation)
--- End diff --
I'm not sure if this is useful, `SimpleCatalogRelation` is always
unresolved and we can provide better message at `CheckAnalysis` if we want to.
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