createlang(1) [redhat man page]
CREATELANG(1) PostgreSQL Client Applications CREATELANG(1) NAME
createlang - define a new PostgreSQL procedural language SYNOPSIS
createlang [ connection-options... ] langname [ dbname ] createlang [ connection-options... ] --list | -l dbname DESCRIPTION
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 CREATE LANGUAGE [create_language(7)] for additional information. 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 sys- tem user. -e --echo Displays SQL commands as they are executed. -l --list Shows a list of already installed languages in the target database (which must be specified). -L directory 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 server 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 -W --password Force password prompt. ENVIRONMENT
PGDATABASE PGHOST PGPORT PGUSER Default connection parameters. DIAGNOSTICS
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(1) for more possibilities. NOTES
Use droplang(1) to remove a language. createlang is a shell script that invokes psql several times. If you have things arranged so that a password prompt is required to connect, you will be prompted for a password several times. EXAMPLES
To install pltcl into the database template1: $ createlang pltcl template1 SEE ALSO
droplang(1), CREATE LANGUAGE [create_language(7)] Application 2002-11-22 CREATELANG(1)
Check Out this Related Man Page
DROPLANG(1) PostgreSQL Client Applications DROPLANG(1) NAME
droplang - remove a PostgreSQL procedural language SYNOPSIS
droplang [ connection-option... ] langname [ dbname ] droplang [ connection-option... ] [ --list ] [ -l ] dbname DESCRIPTION
droplang is a utility for removing an existing programming language from a PostgreSQL database. droplang can drop any procedural language, even those not supplied by the PostgreSQL distribution. Although backend programming languages can be removed directly using several SQL commands, it is recommended to use droplang because it performs a number of checks and is much easier to use. See DROP LANGUAGE [drop_language(7)] for more. OPTIONS
droplang accepts the following command line arguments: langname Specifies the name of the backend programming language to be removed. [-d] dbname [--dbname] dbname Specifies from which database the language should be removed. 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. droplang 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 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. -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 droplang to prompt for a password before connecting to a database. This option is never essential, since droplang will automatically prompt for a password if the server demands password authentica- tion. However, droplang 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 droplang 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 createlang(1) to add a language. EXAMPLES
To remove the language pltcl: $ droplang pltcl dbname SEE ALSO
createlang(1), DROP LANGUAGE [drop_language(7)] Application 2010-05-14 DROPLANG(1)