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