Re: [INTERFACES] Roadmap for FE/BE protocol redesign

From: Bruce Momjian <pgman(at)candle(dot)pha(dot)pa(dot)us>
To: "Marc G(dot) Fournier" <scrappy(at)hub(dot)org>
Cc: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>, pgsql-hackers(at)postgresql(dot)org, pgsql-interfaces(at)postgresql(dot)org
Subject: Re: [INTERFACES] Roadmap for FE/BE protocol redesign
Date: 2003-03-12 02:02:06
Message-ID: 200303120202.h2C226U05386@candle.pha.pa.us
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Marc G. Fournier wrote:
> On Mon, 10 Mar 2003, Tom Lane wrote:
>
> > One of the $64 questions that has to be answered is how much work we're
> > willing to expend on backwards compatibility. The path of least
> > resistance would be to handle it the same way we've done protocol
> > revisions in the past: the backend will be able to handle both old and
> > new protocols (so it can talk to old clients) but libpq would be revised
> > to speak only the new protocol (so new/recompiled clients couldn't talk
> > to old backends). We've gotten away with this approach in the past, but
> > the last time was release 6.4. I fully expect to hear more complaints
> > now.
>
> Personally ... as long as a v8.x client can talk to a v7.x backend, you
> have my vote ... I'm more apt to upgrade my clients before my servers
> anyway ...

Actually, it is usually the opposite, where old clients can talk to
newer servers, but not the reverse.

--
Bruce Momjian | http://candle.pha.pa.us
pgman(at)candle(dot)pha(dot)pa(dot)us | (610) 359-1001
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