从Firebase数据在Bigquery中创建查询

Question

我正在使用来自Firebase的数据处理Bigquery。 我想获取事件和其他变量，例如国家/地区，流量等。

我可以使用此代码获取事件，但是当我尝试添加新变量“ user_dim.geo_info.country”时，出现错误：SELECT列表表达式引用的user_dim.geo_info.country在[3：3]处既未分组也未汇总

#standardSQL
SELECT
  user_dim.geo_info.country,
  event.name AS event_name,
  _TABLE_SUFFIX as day,
  COUNT(1) as users
FROM `project_new.app_events_*`, 
UNNEST(event_dim) AS event
GROUP BY event_name, day 

有人可以帮我吗？

Answer 1

您只需将其添加到GROUP BY，如下所示

#standardSQL
SELECT
  user_dim.geo_info.country AS country,
  event.name AS event_name,
  _TABLE_SUFFIX AS day,
  COUNT(1) AS users
FROM `project_new.app_events_*`, 
UNNEST(event_dim) AS event
GROUP BY country, event_name, day