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26 id 1WrT1s-0002Vu-WA; Mon, 02 Jun 2014 15:16:01 +0100
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30 id 1WrT1Y-0002Tt-NA; Mon, 02 Jun 2014 15:15:40 +0100
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31 From: Mark Walters <markwalters1009@gmail.com>
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32 To: Vladimir Marek <Vladimir.Marek@oracle.com>,
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33 David Edmondson <david.edmondson@oracle.com>
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34 Subject: Re: Deduplication ?
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35 In-Reply-To: <871tv7s8q1.fsf@qmul.ac.uk>
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36 References: <20140602123212.GA12639@virt.cz.oracle.com>
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37 <cuniooj1l68.fsf@gargravarr.hh.sledj.net>
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38 <20140602135438.GA8223@virt.cz.oracle.com>
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39 <871tv7s8q1.fsf@qmul.ac.uk>
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40 User-Agent: Notmuch/0.15.2+615~g78e3a93 (http://notmuchmail.org) Emacs/23.4.1
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42 Date: Mon, 02 Jun 2014 15:15:39 +0100
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79 Mark Walters <markwalters1009@gmail.com> writes:
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81 > Vladimir Marek <Vladimir.Marek@oracle.com> writes:
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83 >>> > I want to import bigger chunk of archived messages into my notmuch
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84 >>> > database. It's about 100k messages. The problem is, that I most probably
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85 >>> > have quite a lot of those messages in the DB. Basically I would like to
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86 >>> > add only those I don't have already.
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88 >>> > There are two possibilities
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90 >>> > a) I will add all the 100k messages and then remove the duplicities.
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92 >>> > b) I will write a script which will parse the message ID's of the
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93 >>> > to-be-added messages and try to match them to the notmuch DB. Adding
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94 >>> > only files I can't find already.
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96 >>> > Ad b) might be better option, but I started to play with the idea of
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97 >>> > deduplication. I'm thinking about listing all the message IDs stored in
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98 >>> > DB, listing all files belonging to the IDs and deleting all but one.
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99 >>> > Also I'm thinking about implementing some simple algorithm telling me
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100 >>> > whether the messages are really very similar. Just to be sure I don't
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101 >>> > delete something I don't want to.
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103 >>> > Was anyone playing with the idea?
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105 >>> notsync[1] used the (lack of) existence of a message id in the store to
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106 >>> decide whether to add something from an IMAP server, but it is old,
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107 >>> crufty, unused and unloved code.
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109 >> I see, that's close to my b) solution, thanks!
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111 > Did you mean a) here? The idea was to add them all first and then run
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112 > this script to delete the duplicates.
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115 Sorry: out of order arrival times and lack of care on my part. Sorry!
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125 >> _______________________________________________
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127 >> notmuch@notmuchmail.org
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128 >> http://notmuchmail.org/mailman/listinfo/notmuch
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