On Wed, 16 Dec 2009 09:18:16 -0400, David Bremner <david@tethera.net> wrote: > I agree that the labels-in-headers approach has some nice advantages. I > haven't thought through merging of tag lists, but maybe that is no worse > than other approaches. One thing that worries me a bit is that notmuch > updates tags often, and each of these updates would require rewriting > the message, at least in the obvious implementation. I'd hate to finally > have Xapian issue 350 fixed, only to take an equivalent hit by rewriting > the message. Maybe it is not that slow. If it is, maybe we could do the sync-back by renaming notmuch-new to notmuch-sync, and doing it there. -- - Marten