On Tue, 2003-03-11 at 06:52, Tom Lane wrote:
> Rod Taylor <[EMAIL PROTECTED]> writes:
> >> We already have that: you send a startup packet with a version less than
> >> the latest, and the backend speaks that version to you.
> > Yes, but that requires you know the backend is less than the latest.
> As opposed to knowing what?  You send the version number you wish to speak;
> either the backend can handle it, or not.

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.

I suppose that the client can just keep retrying the connection with
different versions until it gets a match, though.

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