如何从 Athena SQL 查询中的 3 个表中获取所需的数据？

Question

表 1 (aws_complianceitem) 没有主键，此示例数据：

status	severity	compliancetype	title	resourceid	region
compliant	low	security	2002 patch	i-76765434	ap-south-2
noncompliant	high	audit	2002 kb patch	i-76765434	ap-south-2
compliant	medium	security	2002 kb patch	i-98765434	ap-south-1

表 2 (aws_instanceinformation) 具有 ipaddress 和 instanceid 作为唯一键，并具有以下示例数据：

computername	instanceid	ipaddress	status	accountid
SD-SDYH-re22	i-76765434	10.33.23.1	complianed	887878787654
noncompliant	i-98765434	10.72.33.1	non-complianed	098776765478

表 3 (configinstancestate) 具有 ipaddress 和 resourceid 作为唯一键和此示例数据：

resourceid	ipaddress	instancestate
i-76765434	10.33.23.1	running
i-98765434	10.72.33.1	stopped

我需要所有正在运行的 instanceid 的数据。

这是想要的结果：

status	instancestate	severity	title	resourceid	region	ipaddress
compliant	running	low	2002 patch	i-76765434	ap-south-2	10.33.23.1
noncompliant	running	high	2002 kb patch	i-76765434	ap-south-2	10.33.23.1
compliant	stopped	medium	2002 kb patch	i-98765434	ap-south-1	10.72.33.1

尝试使用以下查询的完全外连接，

SELECT
    t1.status
    , t1.severity
    , t1.title
    , t1.region
    , t1.resourceid
    , t2.ipaddress
    , t2.computername
    , t2.status
    , t3.instancestate
FROM
    aws_complianceitem                      t1
    FULL OUTER JOIN aws_instanceinformation t2
        ON t1.resourceid = t2.instanceid
    FULL OUTER JOIN configinstancestate     t3
        ON t2.ipaddress = t3.resourceid

但是我们过滤了这个结果，我们作为这个查询的一部分使用 instancestate=blank，有空记录

Answer 1

看起来像两个内部连接 ​​- 具有相关条件 - 做你想做的事：

select ac.*, c.*
from aws_complianceitem ac
inner join aws_instanceinformation ai 
    on ai.resourceid = ac.resourceid
inner join configinstancestate c
    on c.resourceid = ac.resourceid and c.ipaddress = ac.ipaddress