BigQuery-UNNEST中引用的值必须是数组。 UNNEST包含STRUCT类型的表达式...在[5:18]

Question

大家好，我这次遇到了一个新的组数组错误，我将与您共享我正在查询的表的架构，以便您可以告诉我解决方案。我尝试使用ARRAY_TO_STRING，但在这种情况下无法解决问题...

SELECT
    individual_details.gender  AS gender,
    COUNT(DISTINCT profile.owner_id ) AS profile_count_distinct
FROM dataset.profile  AS profile
LEFT JOIN UNNEST(profile.individual_details) as individual_details
GROUP BY 1
ORDER BY 2 DESC

  

UNNEST中引用的值必须是数组。 UNNEST包含表达式   类型为[5:18]的STRUCT类型

Answer 1

individual_details不是数组，而是STRUCT-因此您不需要它

尝试以下

SELECT
    individual_details.gender  AS gender,
    COUNT(DISTINCT profile.owner_id ) AS profile_count_distinct
FROM dataset.profile  AS profile
GROUP BY 1
ORDER BY 2 DESC