On Wed, Dec 29, 2021, 4:34 PM David G. Johnston <david(dot)g(dot)johnston(at)gmail(dot)com>
wrote:
> That isn’t how it works. Absence is what is important. Null is not
> absence. As you showed, if you want nulls to be converted to defaults you
> can use coalesce.
>
Thanks sir. It seems unfortunate that there is not a way to indicate
absence of the third parameter if I need to set a value for the fourth
parameter.