Hive 如何从表中添加一列作为计数（*）？

我有一个只包含两列的表格：

session\u id，word\u id

，表格是

session\u word

下面的sql查询可以得到两个值：

select count(*) as sum_word_freq from session_word
select count(distinct session_id) as sum_session_freq from session_word

我已经建立了一个表作为

select word_id, count(*) as word_freq , count(distinct session_id) as word_session_freq
    from session_word
    group by word_id

但是我想在另外两列中包含结果：

sum\u word\u freq

和

sum\u session\u freq

。

---

如何在完整的sql查询中实现它。

如果希望在单个查询中按不同组进行聚合，则使用分析函数是解决方案：

select
        word_id, 
        word_freq, 
        word_session_freq,
        --the sum for all dataset
        sum(word_freq)         over() as sum_word_freq,
        sum(word_session_freq) over() as sum_session_freq
from
(
 select word_id, 
        count(*)                   as word_freq, 
        count(distinct session_id) as word_session_freq
    from session_word
    group by word_id
)s;