select distinct a.pro_id,a.pro_ip,b.name from
(select distinct pro_id,pro_ip from table2)a
inner join
(select distinct id,name from table1
where ds = "${bizdate}"
)b
on a.pro_id = b.id
-- where name is not null 为什么这里不能加where？
不加where可以正确获取数据，加了就是空值
