如果我知道 BigQuery 中有两个大小相等的数组。如何将它们压缩到一个结构数组或两个元素数组或类似数组中?
以下查询为我提供了 x 和 y 的所有可能组合,这不是我想要的。
WITH test AS (
SELECT
['a', 'b', 'c'] as xs,
[1, 2, 3] as ys
)
SELECT struct(x, y) as pairs
FROM test, unnest(xs) as x, unnest(ys) as y
我想得到这样的东西:
+--------+--------+
| pair.x | pair.y |
+--------+--------+
| a | 1 |
| b | 2 |
| c | 3 |
+--------+--------+
最佳答案
使用 WITH OFFSET
和括号运算符:
WITH test AS (
SELECT
['a', 'b', 'c'] as xs,
[1, 2, 3] as ys
)
SELECT struct(x, ys[OFFSET(off)] as y) as pairs
FROM test, unnest(xs) as x WITH OFFSET off;
关于arrays - Bigquery - 如何将两个数组压缩为一个?,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/44365507/