Catalogs are planned for an upcoming release, and don't yet appear in any current releases.
Syntax
USE CATALOG catalog_name
Description
Changes to another catalog.
Can only be done by a super user in the 'def' catalog.
Changing catalog will update catalog status and reset all session status.
A tenant (a user in any other catalog than 'def') cannot change to another catalog.
However tenants can execute USE CATALOG current_catalog. This is to allow the
user to import SQL scripts that use USE CATALOG....
