Re: Backend-internal SPI operations

Mike Mascari <mascarm(at)mascari(dot)com> writes:
>> 1. Function Prototypes (CREATE FUNCTION ... AS NULL)
>> 2. Types

> Sorry. I forgot about function prototypes with arguments of
> user-defined types. Seems there's no magic bullet. :-(

Not necessarily --- there's a shell-type (or type forward reference,
if you prefer) feature that exists to handle exactly that apparent
circularity. Otherwise you could never define a user-defined type at
all, since you have to define its I/O procedures before you can do
CREATE TYPE.

I didn't study your proposal in detail, but it might work.

regards, tom lane