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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 Post-
       greSQL 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  eas-
       ier 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  authentication.	 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)
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