1. notmuch count --output=messages outputs estimated number
2. notmuch count --output=(files|threads) can be slow
---
doc/man1/notmuch-count.rst | 14 +++++++++-----
1 file changed, 9 insertions(+), 5 deletions(-)
diff --git a/doc/man1/notmuch-count.rst b/doc/man1/notmuch-count.rst
index ca78c18..3bb6981 100644
--- a/doc/man1/notmuch-count.rst
+++ b/doc/man1/notmuch-count.rst
@@ -10,7 +10,7 @@ SYNOPSIS
DESCRIPTION
===========
-Count messages matching the search terms.
+Count (an estimate of) the number of messages matching the search terms.
The number of matching messages (or threads) is output to stdout.
@@ -25,16 +25,20 @@ Supported options for **count** include
``--output=(messages|threads|files)``
**messages**
- Output the number of matching messages. This is the default.
+ Output an estimate of the number of matching messages. This is the
+ default.
**threads**
- Output the number of matching threads.
+ Output the exact number of matching threads. The search is
+ performed, so this is a significantly heavier operation than
+ ``--output=messages``.
**files**
- Output the number of files associated with matching
+ Output the exact number of files associated with matching
messages. This may be bigger than the number of matching
messages due to duplicates (i.e. multiple files having the
- same message-id).
+ same message-id). The search is performed, so this is a
+ significantly heavier operation than ``--output=messages``.
``--exclude=(true|false)``
Specify whether to omit messages matching search.tag\_exclude
--
2.1.0
