You should have received a copy of the GNU General Public License
along with notmuch. If not, see <http://www.gnu.org/licenses/>.
You should have received a copy of the GNU General Public License
along with notmuch. If not, see <http://www.gnu.org/licenses/>.
:type db: :class:`Database`
:param querystr: The query string
:type querystr: utf-8 encoded str or unicode
:type db: :class:`Database`
:param querystr: The query string
:type querystr: utf-8 encoded str or unicode
# create reference to parent db to keep it alive
self._db = db
# create query, return None if too little mem available
# create reference to parent db to keep it alive
self._db = db
# create query, return None if too little mem available