DROP FUNCTION

    Table of contents

    IF EXISTS

    Do not produce an error if the function doesn’t exist.

    function_name

    The name of the function to drop.

    The name given to an argument.

    Function arguments do not retain names, but you can name them in your query for documentation purposes. Note that DROP FUNCTION will ignore argument names, since only the argument data types are needed to identify the function.

    arg_type

    The of an argument, if any.