Computer Science
DROP_FUNCTION(l) DROP_FUNCTION(l)
NAME
DROP FUNCTION - Removes a user-defined C function
SYNOPSIS
DROP FUNCTION name ( [ type [, ...] ] )
INPUTS
name The name of an existing function.
type The type of function parameters.
OUTPUTS
DROP Message returned if the command completes success-
fully.
WARN RemoveFunction: Function "name" ("types") does not
exist
This message is given if the function specified
does not exist in the current database.
DESCRIPTION
DROP FUNCTION will remove references to an existing C
function. To execute this command the user must be the
owner of the function. The input argument types to the
function must be specified, as only the function with the
given name and argument types will be removed.
NOTES
Refer to create_function(l) for information on creating
aggregate functions.
No checks are made to ensure that types, operators or
access methods that rely on the function have been removed
first.
USAGE
This command removes the square root function:
DROP FUNCTION sqrt(int4);
COMPATIBILITY
SQL92
DROP FUNCTION is a Postgres language extension.
SQL/PSM
SQL/PSM is a proposed standard to enable function extensi-
bility. The SQL/PSM DROP FUNCTION statement has the fol-
lowing syntax:
DROP [ SPECIFIC ] FUNCTION name { RESTRICT | CASCADE }
SQL - Language Statements 15 August 1999 1
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