gistfile1.txt

MariaDB [d6]> select * from votingapi_vote where content_id = 9;
+---------+--------------+------------+-------+------------+--------+-----+------------+-------------+
| vote_id | content_type | content_id | value | value_type | tag    | uid | timestamp  | vote_source |
+---------+--------------+------------+-------+------------+--------+-----+------------+-------------+
|      36 | node         |          9 |     1 | points     | idea   |   3 | 1326121564 | ::1         |
|      37 | node         |          9 |     1 | points     | idea   |   1 | 1326121565 | ::1         |
|      46 | node         |          9 |     1 | points     | points |   1 | 1326137013 | ::1         |
|      56 | node         |          9 |    -1 | points     | points |   3 | 1326148550 | ::1         |
+---------+--------------+------------+-------+------------+--------+-----+------------+-------------+
4 rows in set (0.05 sec)



$criteria['content_id'] = 9;
$criteria['content_type'] = 'node';
$criteria['value_type'] = 'points';
$criteria['function']  = 'sum';
print_r(votingapi_select_single_result_value($criteria));

returns:  2