Inheritance and reference integrity

Hi!

I wonder why following SQL-sequence will fail:

-- DROP TABLE car;
-- DROP TABLE vehicle;
-- DROP SEQUENCE vehicle_id_seq;

CREATE TABLE vehicle(
id SERIAL,
color TEXT,
--
CONSTRAINT PK_vehicle PRIMARY KEY (id)
);


CREATE TABLE car(
driver TEXT
)INHERITS(vehicle);


-- DROP TABLE foobar;

CREATE TABLE foobar(
snafu TEXT,
driver_id INTEGER CONSTRAINT CR_foobar_driver_id REFERENCES car (id)
);

Result:

psql:inherits_test.sql:25: NOTICE: CREATE TABLE will create implicit
trigger(s) for FOREIGN KEY check(s)
psql:inherits_test.sql:25: ERROR: UNIQUE constraint matching given keys
for referenced table "car" not found

Is it just me or postgres? =)

BR, Jani

P.S. My Postgresql's version number is 7.1.

---
Jani Averbach