Index for Section FUNCTION

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DROP
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 may
  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(5)], ALTER FUNCTION [alter_function(l)]

Index for Section FUNCTION

Alphabetical listing for D

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