cloud-fan commented on a change in pull request #27897: [SPARK-31113][SQL] Add
SHOW VIEWS command
URL: https://github.com/apache/spark/pull/27897#discussion_r402722436
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File path:
sql/core/src/main/scala/org/apache/spark/sql/execution/command/views.scala
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@@ -295,6 +295,41 @@ case class AlterViewAsCommand(
}
}
+/**
+ * A command for users to get views in the given database.
+ * If a databaseName is not given, the current database will be used.
+ * The syntax of using this command in SQL is:
+ * {{{
+ * SHOW VIEWS [(IN|FROM) database_name] [[LIKE] 'identifier_with_wildcards'];
+ * }}}
+ */
+case class ShowViewsCommand(
+ databaseName: Option[String],
Review comment:
why does this need to be an `Option`? We always pass `Some(ns.head)`, right?
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