Some types of objects are stored in SQLstream s-Server and can be created and manipulated with SQL. A SQLstream s-Server catalog is the highest level repository object; it contains metadata and state information for the catalog objects (including streams, pumps and adapters that comprise a SQLstream s-Server repository.
Objects that are contained in a schema are described in Objects within a Schema
A named catalog object that defines a particular named use of a foreign or local data wrapper, including as options any information needed to connect to the data source. the SQL standard refers to this as a foreign server when using a foreign data wrapper.