Creating children tables

CREATE TABLE users (username text, email text);
CREATE TABLE simple_users () INHERITS (users);
CREATE TABLE users_with_password (password text) INHERITS (users);

Our three tables look like this:

users

Column | Type — | — username | text email | text

simple_users

Column | Type — | — username | text email | text

users_with_password

Column | Type — | — username | text email | text password | text