CREATE SERVER — define a new foreign server
CREATE SERVER [ IF NOT EXISTS ]server_name
[ TYPE 'server_type
' ] [ VERSION 'server_version
' ] FOREIGN DATA WRAPPERfdw_name
[ OPTIONS (option
'value
' [, ... ] ) ]
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.
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.
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.
If the foreign server supports sort pushdown, it is necessary for it to have the same sort ordering as the local server.
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.
CREATE SERVER
conforms to ISO/IEC 9075-9 (SQL/MED).