如何在 Bigquery 的 ON 子句中使用列别名

Question

with T2 as
(select C5,C6 from T6) 
   
SELECT C1,C2,C3,
    FROM 
    (
        SELECT C2,C3,C4,C5
        firstvalue(C4) over (partition by C2,order by C3) as C1
        FROM T1
     ) T3
   left join T2
   on T1.c1 = T2.C5

我正在尝试基于类似于上述查询的别名（派生列）加入，如果我想在 Bigquery 中使用别名加入，解决方案是什么，请告知。

在 T1 中找不到类似 C1 的错误。

Answer 1

SELECT u.id, u.distance as distance
FROM USERS u
INNER JOIN
(
    SELECT user_id,
    min(10 * 10) as mindistance
    FROM Location
    GROUP BY user_id
 ) L ON u.id = L.user_id AND u.distance = L.mindistance