rule system oddity

Hi,
i was doing some tests and found out this:

create table foo (
id serial not null primary key,
name text not null
);
NOTICE: CREATE TABLE will create implicit sequence
"foo_id_seq" for serial column "foo.id"
NOTICE: CREATE TABLE / PRIMARY KEY will create
implicit index "foo_pkey" for table "foo"

i want the view show the oid of the row it shows:
create view vfoo as select oid, * from foo;

so far, so good...

-- then i create this rule

create rule insrule as on insert to vfoo
do instead
insert into foo(id, name) values (new.id, new.name);

and try an insert

insert into vfoo values(1, 'test1');
ERROR: invalid input syntax for integer: "test1"

it seems like it's trying to insert into the oid
column is that the intended behaviour? or is it a bug?
(i think is the latter). if it's a bug? where (in the
code) is the rule expanded?

regards,
Jaime Casanova

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