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Livre :
Expressions régulières,
Syntaxe et mise en oeuvre :

ISBN : 978-2-7460-9712-4
EAN : 9782746097124
(Editions ENI)

GNU/Linux	CentOS 2.1AS (Slurm)
	drop_function(l)

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DROP FUNCTION

NAME
SYNOPSIS
DESCRIPTION
USAGE
COMPATIBILITY

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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 successfully.

NOTICE 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 [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 extensibility. The SQL/PSM DROP FUNCTION statement has the following syntax:

DROP [ SPECIFIC ] FUNCTION name { RESTRICT | CASCADE }

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drop_function(l)