createlang

Defines a new procedural language for a database.

Synopsis

createlang [connection_option ...] [-e] langname [[-d] dbname]

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

createlang --help 

createlang --version

Description

The createlang utility adds a new programming language to a database. createlang is a wrapper around the SQL command CREATE LANGUAGE.

The procedural language packages included in the standard Greenplum Database distribution are:

  • PL/pgSQL
  • PL/Perl
  • PL/Python
  • PL/Java

The PL/pgSQL language is registered in all databases by default.

Greenplum Database has a language handler for PL/R, but the PL/R language package is not pre-installed with Greenplum Database. A package is available for PL/Tcl that you can enable. See the Procedural Languages section in the PostgreSQL documentation for more information.

Options

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 PGDATABASE environment variable setting, or the same name as the current system user.
-e | --echo
Echo the commands that createlang generates and sends to the server.
-l dbname | --list dbname
Show a list of already installed languages in the target database.
Connection Options
-h host | --host host
The host name of the machine on which the Greenplum master database server is running. If not specified, reads from the environment variable PGHOST or defaults to localhost.
-p port | --port port
The TCP port on which the Greenplum master database server is listening for connections. If not specified, reads from the environment variable PGPORT or defaults to 5432.
-U username | --username username
The database role name to connect as. If not specified, reads from the environment variable PGUSER or defaults to the current system role name.
-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 a password prompt.

Examples

To install the language plperl into the database template1:

createlang plperl template1

See Also

CREATE LANGUAGE, DROP LANGUAGE