Provided by: postgresql-client-8.3_8.3.8-1_i386 bug

NAME

       DROP FUNCTION - remove a function

SYNOPSIS

       DROP FUNCTION [ IF EXISTS ] name ( [ [ argmode ] [ argname ] argtype [, ...] ] )
           [ CASCADE | RESTRICT ]

DESCRIPTION

       DROP  FUNCTION  removes  the  definition  of  an  existing function. To
       execute this command the user must be the owner of  the  function.  The
       argument  types  to  the  function  must  be  specified,  since several
       different functions can exist with the same name and different argument
       lists.

PARAMETERS

       IF EXISTS
              Do  not  throw an error if the function does not exist. A notice
              is issued in this case.

       name   The name (optionally schema-qualified) of an existing  function.

       argmode
              The  mode  of an argument: either IN, OUT, or INOUT. If omitted,
              the default is IN.  Note that DROP FUNCTION  does  not  actually
              pay  any  attention  to  OUT  arguments,  since  only  the input
              arguments are needed to determine the function’s  identity.   So
              it is sufficient to list the IN and INOUT arguments.

       argname
              The  name  of  an  argument.   Note  that DROP FUNCTION does not
              actually pay any attention to argument  names,  since  only  the
              argument  data  types  are  needed  to  determine the function’s
              identity.

       argtype
              The data type(s) of the function’s arguments (optionally schema-
              qualified), if any.

       CASCADE
              Automatically  drop objects that depend on the function (such as
              operators or triggers).

       RESTRICT
              Refuse to drop the function if any objects depend on it. This is
              the default.

EXAMPLES

       This command removes the square root function:

       DROP FUNCTION sqrt(integer);

COMPATIBILITY

       A DROP FUNCTION statement is defined in the SQL standard, but it is not
       compatible with this command.

SEE ALSO

       CREATE     FUNCTION      [create_function(7)],      ALTER      FUNCTION
       [alter_function(l)]