小编Dan*_*rez的帖子

我收到以下错误

(100032) 执行查询作业时出错。消息：无法识别的名称：嵌套

nested我的临时表在哪里声明为 WITH 子句。尝试的代码如下：

WITH nested AS
(
  SELECT e.my_id , SPLIT(secondary_ids, '<#>') AS arr_secondary_ids
  FROM table_with_delimited_string_column e
  WHERE my_id = 1234
)
SELECT DISTINCT a
FROM  UNNEST(nested.arr_secondary_ids) a

SPLIT 函数将返回一个 ARRAY 类型，该类型稍后将被取消嵌套。

从 Google Cloud 文档中，这是有效的：

SELECT *
FROM UNNEST(ARRAY<STRUCT<x INT64, y STRING>>[(1, 'foo'), (3, 'bar')]);

这也有效：

WITH sequences AS
  (SELECT 1 AS id, [0, 1, 1, 2, 3, 5] AS some_numbers
   UNION ALL SELECT 2 AS id, [2, 4, 8, 16, 32] AS some_numbers
   UNION …