Re: [PATCH] Store "from" and "subject" headers in the database.

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+From: Jameson Graef Rollins <jrollins@finestructure.net>\r
+To: Austin Clements <amdragon@MIT.EDU>, notmuch@notmuchmail.org\r
+Subject: Re: [PATCH] Store "from" and "subject" headers in the database.\r
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+Date: Sun, 13 Nov 2011 22:34:38 -0800\r
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+--=-=-=\r
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+On Sun,  6 Nov 2011 12:17:36 -0500, Austin Clements <amdragon@MIT.EDU> wrot=\r
+e:\r
+> This is a rebase and cleanup of Istvan Marko's patch from\r
+> id:m3pqnj2j7a.fsf@zsu.kismala.com\r
+>=20\r
+> Search retrieves these headers for every message in the search\r
+> results.  Previously, this required opening and parsing every message\r
+> file.  Storing them directly in the database significantly reduces IO\r
+> and computation, speeding up search by between 50% and 10X.\r
+\r
+Hey, Austin.  This is a very nice patch.  Short and sweet, a really nice\r
+performance improvement, and a nice gentle fallback.\r
+\r
+I just rebuilt my database and I can definitely see the improvements.\r
+Search results are incredibly snappy, and the resultant database is only\r
+about 8% bigger.\r
+\r
+I fully endorse this being pushed.\r
+\r
+jamie.\r
+\r
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