Impala AnalysisException: HAVING 子句不支持子查询

Question

我有一个查询，我在其中选择用户代理字符串匹配的目标主机名，并使用 Impala.

根据存在不同 srchostname 的位置进行分组

select desthostname
from proxy_table 
where useragentstring = "Mozilla/5.0 (Windows NT 6.2; Win64; x64) AppleWebKit/538.1 (KHTML, like Gecko) Google Earth Pro/7.3.2.5491 Safari/538.1"
group by desthostname
having count(*) = (select count(distinct srchostname) from proxy_table);

但我运行陷入了错误： AnalysisException: Subqueries are not supported in the HAVING clause.

你知道我该如何解决这个问题吗？

Answer 1

运行这个：

select desthostname from
(select desthostname,count(*) as cnt
from proxy_table 
where useragentstring = "Mozilla/5.0 (Windows NT 6.2; Win64; x64) AppleWebKit/538.1 (KHTML, like Gecko) Google Earth Pro/7.3.2.5491 Safari/538.1"
group by desthostname) A where A.cnt in (select count(distinct srchostname) from proxy_table);

Impala AnalysisException: HAVING 子句不支持子查询

Impala AnalysisException: Subqueries are not supported in the HAVING clause

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