Pegasus InfoCorp: Web site design and web software development company

DROP_FUNCTION (l)

Removes a user-defined C function

SYNOPSIS

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

    name

      The name of an existing function.

    type

      The type of function parameters.

    DROP

      Message returned if the command completes successfully.

    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.

    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

    DROP FUNCTION is a Postgres language extension.

    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 }