| From: | "Merlin Moncure" <merlin(dot)moncure(at)rcsonline(dot)com> |
|---|---|
| To: | "Bruce Badger" <bruce_badger(at)badgerse(dot)com> |
| Cc: | <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 22:18:00 |
| Message-ID: | 303E00EBDD07B943924382E153890E5433F7F4@cuthbert.rcsinc.local |
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| Thread: | |
| Lists: | pgsql-hackers pgsql-interfaces |
> 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.
Merlin
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