createlang is a utility for adding a new
programming language to a PostgreSQL database.
createlang can handle all the languages
supplied in the default PostgreSQL distribution, but
not languages provided by other parties.
Although backend programming languages can be added directly using
several SQL commands, it is recommended to use
createlang because it performs a number
of checks and is much easier to use. See
for additional information.
createlang accepts the following command-line arguments:
Specifies the name of the procedural programming language to be
[-d] dbname [--dbname] dbname
Specifies to which database the language should be added.
The default is to use the database with the same name as the
current system user.
Displays SQL commands as they are executed.
Shows a list of already installed languages in the target database
(which must be specified).
Specifies the directory in which the language interpreter is
to be found. The directory is normally found automatically; this
option is primarily for debugging purposes.
createlang also accepts
the following command-line arguments for connection parameters:
-h host --host host
Specifies the host name of the machine on which the
is running. If host begins with a slash, it is used
as the directory for the Unix domain socket.
-p port --port port
Specifies the Internet TCP/IP port or local Unix domain socket file
extension on which the server
is listening for connections.
-U username --username username
User name to connect as
Force password prompt.
PGDATABASE PGHOST PGPORT PGUSER
Default connection parameters.
Most error messages are self-explanatory. If not, run
createlang with the --echo
option and see under the respective SQL command
for details. Check also under psql
for more possibilities.