插件的db脚本，创建存储过程失败

delimiter $$
create procedure `update_boco_product_project`()
begin
    begin
        declare v_work_type varchar(100);
        declare v_work_id bigint;
        declare v_project bigint;
        declare v_product bigint;
        declare done int default false ;
        declare cur cursor for
        (
            select
                pt.work_type,
                pt.work_id,
                pt.project,
                pt.product
            from
                boco_product_project_temp pt
                inner join boco_product_project p on p.work_type = pt.work_type and p.work_id = pt.work_id
            where
                pt.project != p.project
                or pt.product != p.product
        );
        declare exit handler for not found set done = true;

        open cur;
        cur:loop
            fetch cur into v_work_type,v_work_id,v_project,v_product;
            if done then
                leave cur;
            end if;
           
            update boco_product_project set project=v_project,product=v_product where work_type = v_work_type and work_id = v_work_id;
            commit;
        end loop;
        close cur ;
    end;

    begin
        insert into boco_product_project
        select
            pt.*
        from
            boco_product_project_temp pt
            left join boco_product_project p on p.work_type = pt.work_type and p.work_id = pt.work_id
        where
            p.work_id is null
            and p.work_type is null;
        commit;
    end;
    begin
        delete p
        from
            boco_product_project_temp pt
            right join boco_product_project p on p.work_type = pt.work_type and p.work_id = pt.work_id
        where
            pt.work_id is null
            and pt.work_type is null;
        commit;
    end;
end$$
delimiter ;