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