text: -- @testpoint: opengauss关键字comments(非保留)，作为游标名，部分测试点合理报错
  
  --前置条件
  drop table if exists comments_test cascade;
  create table comments_test(cid int,fid int);
  
  --关键字不带引号-成功
  start transaction;
  cursor comments for select * from comments_test order by 1;
  close comments;
  end;
  
  --关键字带双引号-成功
  start transaction;
  cursor "comments" for select * from comments_test order by 1;
  close "comments";
  end;
  
  --关键字带单引号-合理报错
  start transaction;
  cursor 'comments' for select * from comments_test order by 1;
  close 'comments';
  end;
  
  --关键字带反引号-合理报错
  start transaction;
  cursor `comments` for select * from comments_test order by 1;
  close `comments`;
  end;
  drop table if exists comments_test cascade;