Magnus Hagander <magnus@hagander.net> writes:
> Not having thought about it in much detail, but it's a fairly common
> scenario to have a much newer version of libpq (and the platform it's
> built on) than the server. E.g. a v12 libpq against a v9.6 postgres
> server is very common. For example, debian based systems will
> auto-upgrade your libpq, but not your server (for obvious reasons).
> And it's also quite common to upgrade platforms for the application
> much more frequently than the database server platform.
Yeah, there's a reason why we expect pg_dump and psql to function with
ancient server versions. We shouldn't break this scenario with
careless rejiggering of libpq's connection defaults.
regards, tom lane
