text: CREATE TABLE articles
  (
      id        serial  NOT NULL,
      title     text    NOT NULL,
      content   text    NOT NULL,
      rating    integer NOT NULL,
      author_id serial  NOT NULL,
      PRIMARY KEY (id)
  );
  
  INSERT INTO articles (id, title, content, rating, author_id)
  VALUES (1, 'test1', 'test1', 1, 4),
          (2, 'test2', 'test1', 1, 4),
          (3, 'test3', 'test1', 1, 4);