Blame for deploy/selfhost/postgres/01_roles.sql

-- Local self-host roles. These are database roles, not provider credentials.
DO $$
BEGIN
  IF NOT EXISTS (SELECT 1 FROM pg_roles WHERE rolname = 'anon') THEN
    CREATE ROLE anon NOLOGIN;
  END IF;
  IF NOT EXISTS (SELECT 1 FROM pg_roles WHERE rolname = 'authenticated') THEN
    CREATE ROLE authenticated NOLOGIN;
  END IF;
  IF NOT EXISTS (SELECT 1 FROM pg_roles WHERE rolname = 'service_role') THEN
    CREATE ROLE service_role NOLOGIN BYPASSRLS;
  END IF;
END
$$;

ALTER ROLE service_role BYPASSRLS;