+
+ # datestamp
+ $res = $ro->query('dt:20101002000001..20101002000001');
+ @res = filter_mids($res);
+ is_deeply(\@res, ['ghost-message@s'], 'exact Date: match works');
+ $res = $ro->query('dt:20101002000002..20101002000002');
+ is_deeply($res, [], 'exact Date: match down to the second');