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