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Re: Avahi support for Postgresql

From: Mathias Hasselmann <mathias(at)openismus(dot)com>
To: Peter Eisentraut <peter_e(at)gmx(dot)net>
Cc: pgsql-patches(at)postgresql(dot)org,Murray Cumming <murrayc(at)openismus(dot)com>
Subject: Re: Avahi support for Postgresql
Date: 2008-02-25 19:24:08
Message-ID: 1203967448.7227.41.camel@localhost (view raw, whole thread or download thread mbox)
Thread:
Lists: pgsql-hackerspgsql-patches
Am Montag, den 25.02.2008, 15:27 +0100 schrieb Peter Eisentraut:
> Am Dienstag, 27. November 2007 schrieb Mathias Hasselmann:
> > I don't know, if the 4th patch adding subtypes describing Postgresql's
> > capabilities is wanted by the Postgresql community. Being a desktop guy,
> > using Postgresql as embedded database, I'd really like to see all of the
> > patches merged, but I could imagine some opposition against the verbose
> > nature of the subtypes patch.
> 
> I am not convinced about the usefulness of the subtypes patch.  The examples 
> you cite -- FTP, bittorrent, distcc -- are cases where a client could pick 
> the most appropriate server from a set of equivalent instances.  I don't see 
> how this can be useful in a PostgreSQL setting, at least not based on the 
> parameters server version and protocol version that you implemented.

Well, I could imagine certain cases, where applications only want to
list Postgresql servers newer than release x.y - since they depend on
certain new features of that release.

But you could be right, that the approach I've implemented only allows
filtering for "revision == x.y", but not the intended "revision >= x.y".

So maybe the release number, or a feature list (similar the capability
list of SMTP) should be put into the announcement's TXT record.

Well, but I do not consider that sub-type feature that important.

Ciao,
Mathias
-- 
Mathias Hasselmann <mathias(at)openismus(dot)com>
http://www.openismus.com/ - We can get it done.


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