From: Carl Worth <cworth@cworth.org>
To: Olly Betts <olly@survex.com>, notmuch@notmuchmail.org
In-Reply-To: <loom.20091222T234335-482@post.gmane.org>
References: <87oclwrtqa.fsf@jameswestby.net>
	<874onoysrl.fsf@yoom.home.cworth.org> <87my1grrdi.fsf@jameswestby.net>
	<873a38ypg5.fsf@yoom.home.cworth.org>
	<loom.20091222T234335-482@post.gmane.org>
Date: Tue, 22 Dec 2009 16:05:53 -0800
Message-ID: <87fx72o8pq.fsf@yoom.home.cworth.org>
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Subject: Re: [notmuch] Missing messages breaking threads
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On Tue, 22 Dec 2009 22:48:25 +0000 (UTC), Olly Betts <olly@survex.com> wrot=
e:
> This is just the sort of thing which Xapian's "user metadata" is there
> for.  It's essentially a key/value store which is versioned along with
> the rest of the Xapian database.  So to set it:
>=20
>   database.set_metadata("version", "1");
>=20
> And to read (and default if not set):
>=20
>   string version =3D database.get_metadata("version");
>   if (version.empty()) version =3D "0";

Thanks, Olly!

That is exactly what we'll want here, and is much better than a magic
document.

=2DCarl (grateful to have a Xapian expert keeping watch on the list)

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