gatorsmile commented on a change in pull request #24741: [SPARK-27322][SQL]
DataSourceV2: Select from multiple catalogs
URL: https://github.com/apache/spark/pull/24741#discussion_r290530304
##########
File path:
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/analysis/unresolved.scala
##########
@@ -38,19 +38,32 @@ class UnresolvedException[TreeType <: TreeNode[_]](tree:
TreeType, function: Str
/**
* Holds the name of a relation that has yet to be looked up in a catalog.
*
- * @param tableIdentifier table name
+ * @param multipartIdentifier table name
*/
-case class UnresolvedRelation(tableIdentifier: TableIdentifier)
- extends LeafNode {
+case class UnresolvedRelation(multipartIdentifier: Seq[String]) extends
LeafNode {
+ import org.apache.spark.sql.catalog.v2.CatalogV2Implicits._
/** Returns a `.` separated name for this relation. */
- def tableName: String = tableIdentifier.unquotedString
+ def tableName: String = multipartIdentifier.quoted
override def output: Seq[Attribute] = Nil
override lazy val resolved = false
}
+object UnresolvedRelation {
+ def apply(tableIdentifier: TableIdentifier): UnresolvedRelation = {
Review comment:
Thanks!
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