Martijn,

> As far as I know (without checking), if there's a default, it's in
> RDB$FIELDS
> and overridden defaults (for non-system domains) go in
> RDB$RELATION_FIELDS. So this should be the same for parameters.
>
> A parameter that's based on a normal datatype should have its default in
> RDB$FIELDS. A parameter based on an existing domain should have its
> default in RDB$PROCEDURE_PARAMETERS.
>
> I believe it is done as such.

Yep. I have no objections to this idea. But other things (syntax and future
extensibility) are still worth discussing further.


Dmitry