Peng-Lei commented on a change in pull request #33175:
URL: https://github.com/apache/spark/pull/33175#discussion_r666139334
##########
File path:
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/plans/logical/v2Commands.scala
##########
@@ -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:
@pan3793 Thank you for input. But I'm pretty sure it doesn't support
catalog in MySQL any version. The link you gave is only a work log. There is no
implementation for it. In MySQL:
database == schema == catalog == a namespace within the server. And all
command entry point in server is do_command in sql_parse.cc, there is no case
for catalog.
--
This is an automated message from the Apache Git Service.
To respond to the message, please log on to GitHub and use the
URL above to go to the specific comment.
To unsubscribe, e-mail: reviews-unsubscr...@spark.apache.org
For queries about this service, please contact Infrastructure at:
us...@infra.apache.org
---------------------------------------------------------------------
To unsubscribe, e-mail: reviews-unsubscr...@spark.apache.org
For additional commands, e-mail: reviews-h...@spark.apache.org
