如何将结构数组传递到用户定义的函数中（使用标准SQL）？
首先，一些上下文：
表架构：
id STRING
customer STRING
request STRUCT<
headers STRING
body STRING
url STRING
>
response STRUCT<
size INT64
body STRING
>
outgoing ARRAY<
STRUCT<
request STRUCT<
url STRING,
body STRING,
headers STRING
>,
response STRUCT<
size INT64,
body STRING
>
>
>
用户定义的功能：
CREATE TEMPORARY FUNCTION extractDetailed(
customer STRING,
request STRUCT<
headers STRING,
body STRING
>,
outgoing ARRAY<
STRUCT<
request STRUCT<url STRING>,
response STRUCT<body STRING>
>
>
)
RETURNS STRING
LANGUAGE js AS """
""";
SELECT extractDetailed(customer, STRUCT(request.headers, …