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