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CREATELANG(1)			  PostgreSQL 9.2.7 Documentation		    CREATELANG(1)

       createlang - install a PostgreSQL procedural language

       createlang [connection-option...] langname [dbname]

       createlang [connection-option...] --list | -l  [dbname]

       createlang is a utility for adding a procedural language to a PostgreSQL database.

       createlang is just a wrapper around the CREATE EXTENSION (CREATE_EXTENSION(7)) SQL

	   createlang is deprecated and may be removed in a future PostgreSQL release. Direct use
	   of the CREATE EXTENSION command is recommended instead.

       createlang accepts the following command-line arguments:

	   Specifies the name of the procedural language to be installed. (This name is

       [-d] dbname, [--dbname=]dbname
	   Specifies the database to which the language should be added. The default is to use
	   the database with the same name as the current system user.

       -e, --echo
	   Display SQL commands as they are executed.

       -l, --list
	   Show a list of already installed languages in the target database.

       -V, --version
	   Print the createlang version and exit.

       -?, --help
	   Show help about createlang command line arguments, and exit.

       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 server is running. If the value
	   begins with a slash, it is used as the directory for the Unix domain socket.

       -p port, --port=port
	   Specifies the TCP 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.

       -w, --no-password
	   Never issue a password prompt. If the server requires password authentication and a
	   password is not available by other means such as a .pgpass file, the connection
	   attempt will fail. This option can be useful in batch jobs and scripts where no user
	   is present to enter a password.

       -W, --password
	   Force createlang to prompt for a password before connecting to a database.

	   This option is never essential, since createlang will automatically prompt for a
	   password if the server demands password authentication. However, createlang will waste
	   a connection attempt finding out that the server wants a password. In some cases it is
	   worth typing -W to avoid the extra connection attempt.

	   Default connection parameters

       This utility, like most other PostgreSQL utilities, also uses the environment variables
       supported by libpq (see Section 31.14, "Environment Variables", in the documentation).

       Most error messages are self-explanatory. If not, run createlang with the --echo option
       and see the respective SQL command for details. Also, any default connection settings and
       environment variables used by the libpq front-end library will apply.

       Use droplang(1) to remove a language.

       To install the language pltcl into the database template1:

	   $ createlang pltcl template1

       Note that installing the language into template1 will cause it to be automatically
       installed into subsequently-created databases as well.


PostgreSQL 9.2.7			    2014-02-17				    CREATELANG(1)
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