Robert Haas <robertmhaas@gmail.com> writes:
> IMO, the real problem is that the type interface is poorly
> encapsulated. There's way too much code that knows about the internal
> details of a type - namely, that it's a 32-bit integer modified by a
> second 32-bit integer. I think there are still places where the code
> doesn't even know about typmod. If we're going to go to the trouble
> of changing anything, I think it should probably involve inserting an
> abstraction layer that will make future extensions easier. But I have
> a feeling that's going to be a tough sell.
Yup, you're right. It would be an enormous amount of work and break a
lot of third-party code, for largely hypothetical future benefits.
We've got better places to invest our limited manpower.
regards, tom lane