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