text: SET search_path = pg_catalog;
  
  DROP FUNCTION public.add_unsafe(integer, integer);
  
  CREATE OR REPLACE FUNCTION public.add_safe_second(integer, integer) RETURNS integer
      LANGUAGE sql IMMUTABLE STRICT PARALLEL SAFE
      AS $_$select $1 + $2;$_$;
  
  CREATE OR REPLACE FUNCTION public.add_restricted(integer, integer) RETURNS integer
      LANGUAGE sql IMMUTABLE STRICT
      AS $_$select $1 + $2;$_$;
  
  CREATE OR REPLACE FUNCTION public.add_safe(integer, integer) RETURNS integer
      LANGUAGE sql IMMUTABLE STRICT PARALLEL RESTRICTED
      AS $_$select $1 + $2;$_$;
  