Tom Lane wrote:
Yeah, I don't like putting extra restrictions on the polymorphic case either. Also, see my nearby note about how letting fewer defaults win over more defaults might be unsafe. Considerfoo (f1 int) foo (f1 int, f2 variadic int[]) If the system allows f2 to be defaulted to zero elements, then these two functions would have to be considered ambiguous under the stricter rule. This would make it *impossible* for the user to override the default zero-argument behavior, even with the trick of using an additional function.
Hmm, that use case might best be addressed by allowing the variadic argument to be omitted (or defaulted) if all previous arguments are omittable.
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