From: Mark Walters <markwalters1009@gmail.com>
To: Austin Clements <amdragon@MIT.EDU>
Subject: Re: [PATCH] Automatically exclude tags in notmuch-show
In-Reply-To: <20120120171801.GA16740@mit.edu>
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	<20120119225910.GT16740@mit.edu> <871uqvgrnm.fsf@qmul.ac.uk>
	<20120120171801.GA16740@mit.edu>
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Date: Sun, 22 Jan 2012 00:38:56 +0000
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On Fri, 20 Jan 2012 12:18:01 -0500, Austin Clements <amdragon@MIT.EDU> wrote:
> 
> Oh dear.
> 
> Well, here's one idea.  Instead of doing a single thread query in
> show, do a thread query without the exclusions and then a message
> query with the exclusions.  Output all of the messages from the first
> query, but use the results of the second query to determine which
> messages are "matched".  The same could be accomplished in the library
> somewhat more efficiently, but it's not obvious to me what the API
> would be.

I have been thinking about this and one question is what should the sort
order be? If I understand it correctly notmuch sorts the threads
by the oldest/newest matching message, so the "correct" behaviour if no
message matches is unclear. Perhaps all threads with a matching
non-excluded message sorted by the matching-non-excluded message
followed by all threads that match only on excluded messages with sort
based on the matching excluded message?

Best wishes

Mark