sql - 如何在 Google BigQuery 中导出 Google 优化数据？

Question

所以我运行了一个测试，现在想用 BigQuery 导出我的 Google Optimize 数据。不幸的是，BigQuery 导出中的两个变量“experimentId”和“experimentVariant”都是空的……尽管 Google Analytics 中有针对此日期范围的测试数据。

合成器有问题吗？标准 SQL：

SELECT 
clientId,
visitId,
fullVisitorId,
exp.experimentId AS experimentId,
exp.experimentVariant AS experimentVariant,
trafficSource.source AS source,
trafficSource.medium AS medium,
hits.page.pagePath AS pagePath,
timestamp_seconds(visitStartTime+(CAST(ROUND(hits.time/1000) AS INT64))) 
AS timestamp,
hits.eventInfo.eventCategory AS EventCategory,
hits.eventInfo.eventAction AS EventAction,
hits.eventInfo.eventLabel AS EventLabel

FROM `123456789.ga_sessions_*` LEFT JOIN
UNNEST(hits) hits LEFT JOIN
UNNEST(hits.experiment) exp

WHERE hits.page.pagePath LIKE '%page1/page2%' AND _TABLE_SUFFIX BETWEEN 
FORMAT_DATE('%Y%m%d', date '2019-04-16') AND FORMAT_DATE('%Y%m%d', date 
'2019-04-22') 

GROUP BY 
clientId,
visitId,
fullVisitorId,
experimentId,
experimentVariant,
source,
medium,
pagePath,
timestamp,
eventCategory,
EventAction,
EventLabel