ALTER SERVER
Name
ALTER SERVER -- change the definition of a foreign server
Synopsis
ALTER SERVER name [ VERSION 'new_version' ]
    [ OPTIONS ( [ ADD | SET | DROP ] option ['value'] [, ... ] ) ]
ALTER SERVER name OWNER TO new_owner
ALTER SERVER name RENAME TO new_nameDescription
Note: The following description applies only to Postgres-XC
   FOREIGN DATA WRAPPER has not been supported
   by Postgres-XC yet.  This command may be supported
   in the future releases.