docs: @Bean(name = "uPortalJdbcUserSource")
      @Qualifier("uPortalInternal")
      public IPersonAttributeDao getUPortalJdbcUserSource() {
          final String sql = "SELECT USER_NAME FROM UP_USER WHERE {0}";
          final SingleRowJdbcPersonAttributeDao rslt =
                  new SingleRowJdbcPersonAttributeDao(personDb, sql);
          rslt.setUsernameAttributeProvider(getUsernameAttributeProvider());
          rslt.setQueryAttributeMapping(
                  Collections.singletonMap(USERNAME_ATTRIBUTE, USERNAME_COLUMN_NAME));
          final Map<String, Set<String>> resultAttributeMapping = new HashMap<>();
          resultAttributeMapping.put(
                  USERNAME_COLUMN_NAME,
                  Stream.of(USERNAME_ATTRIBUTE, UID_ATTRIBUTE, USER_LOGIN_ID_ATTRIBUTE)
                          .collect(Collectors.toSet()));
          rslt.setResultAttributeMapping(resultAttributeMapping);
          return rslt;
      }