数组和聚合

WITH fruits AS
  (SELECT "apple" AS fruit
   UNION ALL SELECT "pear" AS fruit
   UNION ALL SELECT "banana" AS fruit)
SELECT ARRAY_AGG(fruit) AS fruit_basket
FROM fruits;

+-----------------------+
| fruit_basket          |
+-----------------------+
| [apple, pear, banana] |
+-----------------------+

WITH fruits AS
  (SELECT "apple" AS fruit
   UNION ALL SELECT "pear" AS fruit
   UNION ALL SELECT "banana" AS fruit)
SELECT ARRAY_AGG(fruit ORDER BY fruit) AS fruit_basket
FROM fruits;

+-----------------------+
| fruit_basket          |
+-----------------------+
| [apple, banana, pear] |
+-----------------------+

WITH sequences AS
  (SELECT [0, 1, 1, 2, 3, 5] AS some_numbers
   UNION ALL SELECT [2, 4, 8, 16, 32] AS some_numbers
   UNION ALL SELECT [5, 10] AS some_numbers)
SELECT some_numbers,
  (SELECT SUM(x)
   FROM UNNEST(s.some_numbers) x) AS sums
FROM sequences s;

+--------------------+------+
| some_numbers       | sums |
+--------------------+------+
| [0, 1, 1, 2, 3, 5] | 12   |
| [2, 4, 8, 16, 32]  | 62   |
| [5, 10]            | 15   |
+--------------------+------+