I see in the fbudf declarations that multiple UDF declarations map to
a single exported function, is there anyway of declaring a UDF
function that can handle a multitude of parameter types. For example
could you make firebird handle both NVL(1,1) amd NVL(0.1, 0.1)?

I think the answer is probably no, but since this would be very
usefull in the work I am currently doing to make an application
FIREBIRD aware, I thought I'd better check before making Uneccessary
changes.