CREATE SERVER
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).