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+From: Daniel Kahn Gillmor <dkg@fifthhorseman.net>\r
+To: David Bremner <david@tethera.net>, notmuch@notmuchmail.org\r
+Subject: Re: [RFC2 Patch 5/5] lib: iterator API for message properties\r
+In-Reply-To: <87mvn1euiz.fsf@zancas.localnet>\r
+References: <1463927339-5441-1-git-send-email-david@tethera.net>\r
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+Date: Sat, 04 Jun 2016 12:23:23 -0400\r
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+--=-=-=\r
+Content-Type: text/plain\r
+\r
+On Fri 2016-06-03 19:12:52 -0400, David Bremner wrote:\r
+>>> [ dkg wrote: ]\r
+>>>> * for messages which have multiple files, which file is actually indexed\r
+>>>\r
+>>> yes. Although rather than storing that, I think the right answer is more\r
+>>> like "all of them".\r
+>>\r
+>> I don't think we do this, do we? Is this a bug? is it tracked somewhere?\r
+>\r
+> IMHO it is a bug. It's implicit in\r
+>\r
+> id:87k42vrqve.fsf@pip.fifthhorseman.net\r
+>\r
+> and the various requests for List-Id indexing, but it's probably worth\r
+> starting a seperate thread to track it. Especially since there are some\r
+> unresolved design issues. Like what to return for searches.\r
+\r
+I'm happy to use that original thread from 2012 as the tracking thread\r
+if you think that's a reasonable starting point. Peter Wang's "Malice\r
+has nothing on incompetence" message in that thread is a good reminder\r
+about other issues there.\r
+\r
+>> the thread-id is *not* reproducible from the\r
+>> message sets. This is not only because of the ghost message leakage bug\r
+>> documented in T590-thread-breakage.sh, but also because threads can be\r
+>> joined by a message that is later removed (e.g., the "notmuch-join"\r
+>> script in id:87egabu5ta.fsf@alice.fifthhorseman.net ).\r
+>\r
+> I see, I guess that's the intended behaviour given 604d1e0977c.\r
+>\r
+> I haven't thought about the pros and cons of dumping/restoring\r
+> thread-ids. At least my database has about half as many threads as\r
+> messages, so it's a bit of data, but perhaps that's not a bit problem.\r
+> It's somewhat orthogonal to this series since those terms are already\r
+> attached to messages.\r
+\r
+i agree that thread restoration is orthogonal to the per-message\r
+properties. I should also be clear that i don't mean to suggest that we\r
+should dump the literal thread-id. That'd be terrible, because you\r
+wouldn't be able to merge two databases.\r
+\r
+I'm happy to move the thread-id discussion to a separate topic, i just\r
+want to make sure that people are aware that our current documentation\r
+for notmuch-dump (below) kind of overstates the case:\r
+\r
+------\r
+ These tags are the only data in the notmuch database that can't be\r
+ recreated from the messages themselves. The output of notmuch dump is\r
+ therefore the only critical thing to backup (and much more friendly to\r
+ incremental backup than the native database files.)\r
+------\r
+\r
+OK, back to the discussion of per-message properties: i think we should\r
+go ahead with this work, now that i understand the scoping/framing of it\r
+better!\r
+\r
+ --dkg\r
+\r
+--=-=-=\r
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projects / notmuch-archives.git / commitdiff