From: | Bruce Badger <bruce_badger(at)badgerse(dot)com> |
---|---|
To: | pgsql-interfaces(at)postgresql(dot)org, pgsql-hackers(at)postgresql(dot)org |
Subject: | Re: [INTERFACES] Roadmap for FE/BE protocol redesign |
Date: | 2003-03-10 22:42:56 |
Message-ID: | 1047336177.10725.15.camel@alice |
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Lists: | pgsql-hackers pgsql-interfaces |
On Tue, 2003-03-11 at 09:18, Merlin Moncure wrote:
> > If the backend can not handle the version I request, but can handle a
> > prior version, I'd like to know. I am planning on having handlers for
> > multiple protocol versions in the same memory space (I'm using
> > Smalltalk, BTW) so that one application can talk to various databases
> of
> > various vintages.
> >
> how about a system table, say pg_features which can be queried by the fe
> interface? This could be a table of bools with named features and/or
> other little widgets for compatibility. No protocol modification
> required, unless the scope of the protocol change is such that you can't
> execute a connection and a query.
But wouldn't you have to connect to get this information? Surely this
is a catch 22.
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