text: --  @testpoint:opengauss关键字message_text(非保留)，作为用户组名
  
  
  --关键字不带引号-成功
  drop group if exists message_text;
  create group message_text with password 'gauss@123';
  drop group message_text;
  
  --关键字带双引号-成功
  drop group if exists "message_text";
  create group "message_text" with password 'gauss@123';
  drop group "message_text";
  
  --关键字带单引号-合理报错
  drop group if exists 'message_text';
  create group 'message_text' with password 'gauss@123';
  
  --关键字带反引号-合理报错
  drop group if exists `message_text`;
  create group `message_text` with password 'gauss@123';
  