DROP SERVER — remove a foreign server descriptor
DROP SERVER [ IF EXISTS ]
name[, ...] [ CASCADE | RESTRICT ]
DROP SERVER removes an existing foreign server
descriptor. To execute this command, the current user must be the
owner of the server.
Do not throw an error if the server does not exist. A notice is issued in this case.
The name of an existing server.
Automatically drop objects that depend on the server (such as user mappings), and in turn all objects that depend on those objects (see Section 5.14).
Refuse to drop the server if any objects depend on it. This is the default.
Drop a server
foo if it exists:
DROP SERVER IF EXISTS foo;
DROP SERVER conforms to ISO/IEC 9075-9
IF EXISTS clause is
a PostgreSQL extension.