lib: optimize counting documents

[notmuch] / lib / query.cc

diff --git a/lib/query.cc b/lib/query.cc
index 53efd4e18fc1698d88c0b8ac476fd33094f2e2fc..4ccd81046128052f3461622e8a58c5c63af782f0 100644 (file)
--- a/lib/query.cc
+++ b/lib/query.cc
@@ -606,8 +606,9 @@ _notmuch_query_count_documents (notmuch_query_t *query, const char *type, unsign
        /*
         * Set the checkatleast parameter to the number of documents
         * in the database to make get_matches_estimated() exact.
+        * Set the max parameter to 0 to avoid fetching documents we will discard.
         */
-       mset = enquire.get_mset (0, notmuch->xapian_db->get_doccount (),
+       mset = enquire.get_mset (0, 0,
                                 notmuch->xapian_db->get_doccount ());
 
        count = mset.get_matches_estimated();