text: create table users
  (
      id            serial,
      username      text,
      picture       text,
      email         text,
      password_hash text,
      client_id     text,
      login_type    text
  );
  
  create table category
  (
      id          serial,
      name        text,
      description text
  );
  
  create table item
  (
      id          serial,
      categoryid  integer,
      name        text,
      description text,
      create_date TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
      client_id   text
  );
  