Re: Deduplication ?

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+To: Vladimir Marek <Vladimir.Marek@oracle.com>, notmuch@notmuchmail.org\r
+Subject: Re: Deduplication ?\r
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+From: David Edmondson <david.edmondson@oracle.com>\r
+Date: Mon, 02 Jun 2014 14:43:43 +0100\r
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+On Mon, Jun 02 2014, Vladimir Marek wrote:\r
+> Hi,\r
+>\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
+> -- \r
+>      Vlad\r
+> _______________________________________________\r
+> notmuch mailing list\r
+> notmuch@notmuchmail.org\r
+> http://notmuchmail.org/mailman/listinfo/notmuch\r
+\r
+Footnotes: \r
+[1]  https://github.com/dme/notsync\r
+\r