rules bug

Hello all,

Have the problem with using RULEs (is it a RULE's bug?):

Do the following:

1) Create table 'num' with column of a type SERIAL, e.g.

CREATE TABLE num (id SERIAL, num INT4);

2) Create table 'num_log' (for logging insertions
in table 'num'), e.g.

CREATE TABLE num_log (num_id INT4, num_val INT4);

3) Create rule 'num_rule' (that makes logging), e.g.

CREATE RULE num_rule AS
ON INSERT TO num
DO INSERT INTO num_log VALUES (NEW.id, NEW.num);

4) Insert into 'num', e.g.

INSERT INTO num (num) VALUES (123);

5) SELECT * FROM num;

id|num
------
2|123

6) SELECT * FROM num_log;

num_id|num_val
--------------
1| 123

The problem is id != num_id, e.g. the 'id' logged with
RULE differs from real 'id' of the inserted (into table 'num')
row.

Did anybody encountered the same problem, if so how it were solved?
Is it a bug?

Thanks!

--
Vladimir Zolotych gsmith(at)eurocom(dot)od(dot)ua