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  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                                                2011-09-22                                                DROPLANG(1)