text: --  @testpoint:opengauss关键字data(非保留)，作为角色名
  
  
  --关键字不带引号-成功
  drop role if exists data;
  create role data with password 'gauss@123' valid until '2020-12-31';
  drop role data;
  
  --关键字带双引号-成功
  drop role if exists "data";
  create role "data" with password 'gauss@123' valid until '2020-12-31';
  drop role "data";
  
  --关键字带单引号-合理报错
  drop role if exists 'data';
  create role 'data' with password 'gauss@123' valid until '2020-12-31';
  
  --关键字带反引号-合理报错
  drop role if exists `data`;
  create role `data` with password 'gauss@123' valid until '2020-12-31';
  