text: CREATE ROLE books_owner WITH LOGIN PASSWORD 'ownerpassword' NOSUPERUSER INHERIT CREATEDB CREATEROLE NOREPLICATION;
  CREATE ROLE books WITH NOLOGIN;
  
  create schema books_schema AUTHORIZATION books_owner;
  GRANT ALL ON SCHEMA books_schema to books_owner;
  grant usage on schema books_schema to books_owner;
  ALTER ROLE books_owner SET search_path TO books_schema,pg_catalog,public;
  
  CREATE USER books_app WITH LOGIN PASSWORD 'apppassword' NOSUPERUSER INHERIT NOREPLICATION;
  GRANT USAGE ON SCHEMA books_schema to books_app;
  
  CREATE EXTENSION IF NOT EXISTS "uuid-ossp";