已知表myobject(objectid int)
create table myobject(objectid int) row format delimited fields terminated by ',' stored as textfile;
按照objectid进行分页，其中objectid在表myobject中是唯一的（不重复）数据。
对表myobject进行分页
select t11.* from
(
select row_number() over (order by t10.objectid) as rnum ,t10.*
from myobject t10
)t11
where t11.rnum between 1 and 50;