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