Hive查询挂起0.13

Question

我有12GB的表数据。

我的表格如下：

userid name score
1      abc   1
1      pqr   1
2      mno   1
2      pqr   1
.
.
.
750000 mno   1 

这是我的疑问：

select a.userid as user1,b.userid as user2, sum(a.score*b.score) as score,count(distinct a.name) as distinct_name from table a join table b on(a.name=b.name) limit 10;

它运行了几个小时但没有返回结果。我该如何解决这个问题？

Answer 1

试试这个，

select a.userid as user1,b.userid as user2, sum(a.score*b.score) as score,count(distinct a.name) as distinct_name 
from table a join table b on(a.name=b.name)
group by a.userid , b.userid
limit 10;

将您的表名替换为表格;