Github user cloud-fan commented on a diff in the pull request: https://github.com/apache/spark/pull/16233#discussion_r94364696 --- Diff: sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/analysis/Analyzer.scala --- @@ -510,32 +510,94 @@ class Analyzer( * Replaces [[UnresolvedRelation]]s with concrete relations from the catalog. */ object ResolveRelations extends Rule[LogicalPlan] { - private def lookupTableFromCatalog(u: UnresolvedRelation): LogicalPlan = { + + def apply(plan: LogicalPlan): LogicalPlan = plan resolveOperators { + case i @ InsertIntoTable(u: UnresolvedRelation, parts, child, _, _) if child.resolved => + i.copy(table = EliminateSubqueryAliases(lookupTableFromCatalog(u))) + case u: UnresolvedRelation => resolveRelation(u) + } + + // If the unresolved relation is running directly on files, we just return the original + // UnresolvedRelation, the plan will get resolved later. Else we look up the table from catalog + // and change the default database name if it is a view. + // + // Note this is compatible with the views defined by older versions of Spark(before 2.2), which + // have empty defaultDatabase and all the relations in viewText have database part defined. + def resolveRelation( + plan: LogicalPlan, + defaultDatabase: Option[String] = None): LogicalPlan = plan match { --- End diff -- Where do we use the `defaultDatabase` parameter?
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