CREATE SERVER
CREATE SERVER — define a new foreign server
Synopsis
CREATE SERVER [ IF NOT EXISTS ]server_name[ TYPE 'server_type' ] [ VERSION 'server_version' ] FOREIGN DATA WRAPPERfdw_name[ OPTIONS (option'value' [, ... ] ) ]
Description
CREATE SERVER defines a new foreign server. The user who defines the server becomes its owner. 
A foreign server typically encapsulates connection information that a foreign-data wrapper uses to access an external data resource. Additional user-specific connection information may be specified by means of user mappings.
The server name must be unique within the database.
 Creating a server requires USAGE privilege on the foreign-data wrapper being used. 
Parameters
- IF NOT EXISTS
- Do not throw an error if a server with the same name already exists. A notice is issued in this case. Note that there is no guarantee that the existing server is anything like the one that would have been created. 
- server_name
- The name of the foreign server to be created. 
- server_type
- Optional server type, potentially useful to foreign-data wrappers. 
- server_version
- Optional server version, potentially useful to foreign-data wrappers. 
- fdw_name
- The name of the foreign-data wrapper that manages the server. 
- OPTIONS (- option'- value' [, ... ] )
- This clause specifies the options for the server. The options typically define the connection details of the server, but the actual names and values are dependent on the server's foreign-data wrapper. 
Notes
 When using the dblink module, a foreign server's name can be used as an argument of the dblink_connect function to indicate the connection parameters. It is necessary to have the USAGE privilege on the foreign server to be able to use it in this way. 
Examples
 Create a server myserver that uses the foreign-data wrapper postgres_fdw: 
CREATE SERVER myserver FOREIGN DATA WRAPPER postgres_fdw OPTIONS (host 'foo', dbname 'foodb', port '5432');
See postgres_fdw for more details.
Compatibility
CREATE SERVER conforms to ISO/IEC 9075-9 (SQL/MED).