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DROP FUNCTION

Name

DROP FUNCTION -- remove a function

Synopsis

DROP FUNCTION name ( [ type [, ...] ] ) [ 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

name

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

type

The data type of an argument of the function.

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.


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