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