Github user jiangxb1987 commented on a diff in the pull request:
https://github.com/apache/spark/pull/16168#discussion_r91235206
--- Diff:
sql/hive/src/main/scala/org/apache/spark/sql/hive/HiveSessionCatalog.scala ---
@@ -55,16 +55,19 @@ private[sql] class HiveSessionCatalog(
conf,
hadoopConf) {
- override def lookupRelation(name: TableIdentifier, alias:
Option[String]): LogicalPlan = {
+ override def lookupRelation(
+ name: TableIdentifier,
+ alias: Option[String],
+ databaseHint: Option[String] = None): LogicalPlan = {
val table = formatTableName(name.table)
- val db = formatDatabaseName(name.database.getOrElse(currentDb))
+ val db =
formatDatabaseName(name.database.getOrElse(databaseHint.getOrElse(currentDb)))
if (db == globalTempViewManager.database) {
val relationAlias = alias.getOrElse(table)
globalTempViewManager.get(table).map { viewDef =>
SubqueryAlias(relationAlias, viewDef, Some(name))
}.getOrElse(throw new NoSuchTableException(db, table))
} else if (name.database.isDefined || !tempTables.contains(table)) {
- val database = name.database.map(formatDatabaseName)
+ val database = Some(db).map(formatDatabaseName)
--- End diff --
+1
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