Robert Haas <robertmhaas@gmail.com> writes:
> One thing I think we should do in this area is introduce #defines for
> all the message type codes and use those instead of having hard-coded
> constants everywhere.
+1, but I wonder where we should put those exactly. My first thought
was postgres_ext.h, but the charter for that is
* This file contains declarations of things that are visible everywhere
* in PostgreSQL *and* are visible to clients of frontend interface libraries.
* For example, the Oid type is part of the API of libpq and other libraries.
so picayune details of the wire protocol probably don't belong there.
Maybe we need a new header concerned with the wire protocol?
regards, tom lane