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