Github user jiangxb1987 commented on a diff in the pull request: https://github.com/apache/spark/pull/16233#discussion_r93646337 --- Diff: sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/analysis/Analyzer.scala --- @@ -510,32 +510,62 @@ 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 lookup the table from catalog + // and change the current database name if it is a view. + def resolveRelation( + plan: LogicalPlan, + currentDatabase: Option[String] = None): LogicalPlan = plan match { + case u @ UnresolvedRelation(table: TableIdentifier, _) if isRunningDirectlyOnFiles(table) => + u + case u: UnresolvedRelation => + resolveView(lookupTableFromCatalog(u, currentDatabase)) + } + + // Lookup the table with the given name from catalog. If `currentDatabase` is set, we lookup + // the table in the database `currentDatabase`, else we follow the default way. + private def lookupTableFromCatalog( --- End diff -- The function is used both in function `apply` and `resolveRelation`.
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