code: @Override
      public int executeUpdate(String updateSql) throws JdbcServerException {
          log.info("Received execute update request: " + updateSql);
          Message response = handleMessageAndCheckResponse(JdbcMessage.execute(updateSql));
          return Optional.ofNullable(
                  response.getHeader(JdbcMessageHeaders.JDBC_ROWS_UPDATED))
                  .map(Object::toString).map(Integer::valueOf)
                  .orElse(0);
      }
docs: Executes the given update
  @param updateSql The update statement to be executed
  @throws JdbcServerException In case that the execution was not successful