CREATE TABLE rr_times.translated_headlines ( id SERIAL PRIMARY KEY, title TEXT NOT NULL, subtitle TEXT ); CREATE TABLE rr_times.issues ( id SERIAL PRIMARY KEY, issued_at DATE NOT NULL, language VARCHAR(2), country VARCHAR(2), FOREIGN KEY (language, country) REFERENCES rr_times.locales (language_code, country_code) ON DELETE SET NULL, translated_headline_id INTEGER NOT NULL, FOREIGN KEY (translated_headline_id) REFERENCES rr_times.translated_headlines (id) ON DELETE RESTRICT );