CREATELANG(1)                                    PostgreSQL Client Applications                                    CREATELANG(1)



NAME
       createlang - define a new PostgreSQL procedural language


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

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

DESCRIPTION
       createlang  is  a  utility  for adding a new programming language to a PostgreSQL database.  createlang is just a wrapper
       around the CREATE LANGUAGE [create_language(7)] command.

OPTIONS
       createlang accepts the following command-line arguments:

       langname
              Specifies the name of the procedural programming language to be defined.

       [-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.

       -e

       --echo Display SQL commands as they are executed.

       -l

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

       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  connec-
              tions.

       -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.

ENVIRONMENT
       PGDATABASE

       PGHOST

       PGPORT

       PGUSER Default connection parameters

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

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

NOTES
       Use droplang(1) to remove a language.

EXAMPLES
       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.

SEE ALSO
       droplang(1), CREATE LANGUAGE [create_language(7)]



Application                                                2011-09-22                                              CREATELANG(1)