[GitHub] [spark] imback82 commented on a change in pull request #26379: [SPARK-29734][SQL] Datasource V2: Support SHOW CURRENT NAMESPACE

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imback82 commented on a change in pull request #26379: [SPARK-29734][SQL] Datasource V2: Support SHOW CURRENT NAMESPACE
URL: https://github.com/apache/spark/pull/26379#discussion_r342175495
 
 

 ##########
 File path: sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/plans/logical/v2Commands.scala
 ##########
 @@ -362,3 +362,12 @@ case class SetCatalogAndNamespace(
 case class RefreshTable(
     catalog: TableCatalog,
     ident: Identifier) extends Command
+
+/**
+ * The logical plan of the SHOW CURRENT NAMESPACE command that works for v2 catalogs.
+ */
+case class ShowCurrentNamespace(catalogManager: CatalogManager) extends Command {
+  override val output: Seq[Attribute] = Seq(
+    AttributeReference("catalogName", StringType, nullable = false)(),
 
 Review comment:
   updated to `catalog/namespace`

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