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