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 con- nection 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 exten- sion 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 automati- cally 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 envi- ronment 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 2014-02-17 CREATELANG(1)