Re: Deduplication ?

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+Date: Mon, 2 Jun 2014 15:54:47 +0200\r
+From: Vladimir Marek <Vladimir.Marek@oracle.com>\r
+To: David Edmondson <david.edmondson@oracle.com>\r
+Subject: Re: Deduplication ?\r
+Message-ID: <20140602135438.GA8223@virt.cz.oracle.com>\r
+References: <20140602123212.GA12639@virt.cz.oracle.com>\r
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+\r
+> > I want to import bigger chunk of archived messages into my notmuch\r
+> > database. It's about 100k messages. The problem is, that I most probably\r
+> > have quite a lot of those messages in the DB. Basically I would like to\r
+> > add only those I don't have already.\r
+> >\r
+> > There are two possibilities\r
+> >\r
+> > a) I will add all the 100k messages and then remove the duplicities.\r
+> >\r
+> > b) I will write a script which will parse the message ID's of the\r
+> >    to-be-added messages and try to match them to the notmuch DB. Adding\r
+> >    only files I can't find already.\r
+> >\r
+> > Ad b) might be better option, but I started to play with the idea of\r
+> > deduplication. I'm thinking about listing all the message IDs stored in\r
+> > DB, listing all files belonging to the IDs and deleting all but one.\r
+> > Also I'm thinking about implementing some simple algorithm telling me\r
+> > whether the messages are really very similar. Just to be sure I don't\r
+> > delete something I don't want to.\r
+> >\r
+> > Was anyone playing with the idea?\r
+> \r
+> notsync[1] used the (lack of) existence of a message id in the store to\r
+> decide whether to add something from an IMAP server, but it is old,\r
+> crufty, unused and unloved code.\r
+\r
+I see, that's close to my b) solution, thanks!\r
+-- \r
+       Vlad\r