Sorry, your right! The example is: CREATE TABLE customers ( id serial PRIMARY KEY, name TEXT, other_data TEXT ); CREATE TABLE customers_part1( CHECK (id<10000) )INHERITS (customers); CREATE TABLE customers_part2( CHECK (id>=10000 AND id<20000) )INHERITS (customers); CREATE OR REPLACE RULE inserts_customer_part1 AS ON INSERT TO customers WHERE new.id < 10000 DO INSTEAD INSERT INTO customers_part1 SELECT NEW.*; CREATE OR REPLACE RULE inserts_customer_part2 AS ON INSERT TO customers WHERE new.id >= 10000 AND new.id < 20000 DO INSTEAD INSERT INTO customers_part2 SELECT NEW.*; INSERT INTO customers (name, other_data) VALUES ('XXXXXXx','YYYYYYYYYY'); INSERT INTO customers (name, other_data) VALUES ('XXXXXXx','YYYYYYYYYY'); INSERT INTO customers (name, other_data) VALUES ('XXXXXXx','YYYYYYYYYY'); INSERT INTO customers (name, other_data) VALUES ('XXXXXXx','YYYYYYYYYY'); INSERT INTO customers (name, other_data) VALUES ('XXXXXXx','YYYYYYYYYY'); INSERT INTO customers (name, other_data) VALUES ('XXXXXXx','YYYYYYYYYY'); dd=# SELECT * FROM customers; id | name | other_data ----+---------+------------ 3 | XXXXXXx | YYYYYYYYYY 7 | XXXXXXx | YYYYYYYYYY 11 | XXXXXXx | YYYYYYYYYY 15 | XXXXXXx | YYYYYYYYYY 19 | XXXXXXx | YYYYYYYYYY 23 | XXXXXXx | YYYYYYYYYY (6 rows) ----- Dame un poco de fe, eso me bastará. Rozvo Ware Solutions -- Sent from: http://www.postgresql-archive.org/PostgreSQL-general-f1843780.html