GRANT ALL PRIVILEGES ON ALL SEQUENCES IN SCHEMA public TO newuser;
GRANT ALL PRIVILEGES ON ALL TABLES IN SCHEMA public TO newuser;
--GRANT ALL PRIVILEGES ON ALL VIEWS IN SCHEMA public TO newuser;
GRANT ALL PRIVILEGES ON ALL FUNCTIONS IN SCHEMA public TO newuser;

CREATE OR REPLACE FUNCTION fn_grant_all_views(schema_name TEXT, role_name TEXT)
RETURNS VOID AS $func$

DECLARE view_name TEXT;

BEGIN

  FOR view_name IN
    SELECT viewname FROM pg_views WHERE schemaname = schema_name
  LOOP
    EXECUTE 'GRANT ALL PRIVILEGES ON ' || schema_name || '.' || view_name || ' TO ' || role_name || ';';
  END LOOP;

END; $func$ LANGUAGE PLPGSQL

SELECT fn_grant_all_views('public','newuser');