cloud-fan commented on a change in pull request #33175:
URL: https://github.com/apache/spark/pull/33175#discussion_r664398787
##########
File path:
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/plans/logical/v2Commands.scala
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@@ -662,6 +662,14 @@ case class ShowCurrentNamespace(catalogManager:
CatalogManager) extends LeafComm
AttributeReference("namespace", StringType, nullable = false)())
}
+/**
+ * The logical plan of the SHOW CATALOGS command.
+ */
+case class ShowCatalogs(catalogManager: CatalogManager) extends LeafCommand {
+ override val output: Seq[Attribute] = Seq(
+ AttributeReference("catalog", StringType, nullable = false)())
Review comment:
can you link to the presto doc? and can you also check some traditional
RDBMS?
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