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  37 From: Austin Clements <amdragon@MIT.EDU>\r
  38 To: notmuch@notmuchmail.org\r
  39 Subject: [PATCH] news: Store "from" and "subject" headers in the database.\r
  40 Date: Mon, 14 Nov 2011 20:15:33 -0500\r
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  71 \r
  72 ---\r
  73  NEWS |   15 +++++++++++++++\r
  74  1 files changed, 15 insertions(+), 0 deletions(-)\r
  75 \r
  76 diff --git a/NEWS b/NEWS\r
  77 index 71c7c9a..88f7b20 100644\r
  78 --- a/NEWS\r
  79 +++ b/NEWS\r
  80 @@ -23,6 +23,21 @@ Add search terms to  "notmuch dump"\r
  81    search/show/tag. The output file argument of dump is deprecated in\r
  82    favour of using stdout.\r
  83  \r
  84 +Optimizations\r
  85 +-------------\r
  86 +\r
  87 +Search avoids opening and parsing message files\r
  88 +\r
  89 +  We now store more information in the database so search no longer\r
  90 +  has to open every message file to get basic headers.  This can\r
  91 +  improve search speed by as much as 10X, but taking advantage of this\r
  92 +  requires a database rebuild:\r
  93 +\r
  94 +       notmuch dump > notmuch.dump\r
  95 +       # Backup, then remove notmuch database ($MAIL/.notmuch)\r
  96 +       notmuch new\r
  97 +       notmuch restore notmuch.dump\r
  98 +\r
  99  Notmuch 0.9 (2011-10-01)\r
 100  ========================\r
 101  \r
 102 -- \r
 103 1.7.7.1\r
 104 \r