Chapman Flack <c...@anastigmatix.net> writes: > I don't mean "overload objectSubId" in any ObjectAddress that PG code > would ever see. I am only thinking of a data structure of my own that > is ObjectAddress-like and has all three components available all the > time, and for an object that's a type, I would find it handy to stash > a typmod there, and not have to carry those around separately.
If this is totally independent of ObjectAddress, why are you even asking? I assume that what you mean is you'd like these values to bleed into ObjectAddresses or vice versa. If we ever do make ObjectAddress.objectSubId mean something for types, I'd expect --- based on the precedent of relation columns --- that it'd specify a column number for a column of a composite type. There are fairly obvious use-cases for that, such as allowing a DROP of a column type to not propagate to the whole composite type. So I'd be pretty down on allowing it to mean typmod instead. regards, tom lane