Re: [PATCH 3/5] cli/count: add --lastmod

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+ Sat, 15 Aug 2015 00:21:53 -0700 (PDT)\r
+From: Daniel Schoepe <daniel@schoepe.org>\r
+To: David Bremner <david@tethera.net>, notmuch@notmuchmail.org\r
+Subject: Re: [PATCH 3/5] cli/count: add --lastmod\r
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+Date: Sat, 15 Aug 2015 09:21:49 +0200\r
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+On Fri, 14 Aug 2015 18:47 +0200, David Bremner wrote:\r
+> +    ``--lastmod``\r
+> +    Append lastmod (counter for number of database updates) and UUID\r
+> +    to the output. lastmod values are only comparable between databases\r
+> +    with the same UUID.\r
+\r
+Sorry to keep harping on this, but I'm not entirely happy with the way\r
+we handle notmuch-compact here (and in the other commit that mentions\r
+compacting explicitly). Given that lastmod values (and pretty much\r
+everything else) aren't affected by compacting, would it perhaps make\r
+sense to copy the previous UUID to the newly compacted database?\r
+\r
+Given that a compacted database is "indistinguishable" from the previous\r
+non-compacted database, we may want to signal that it's still the "same\r
+database". Is there a case where compacting actually makes a difference\r
+to anything making use of lastmod values?\r
+\r
+Best regards,\r
+Daniel\r