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