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Question

我想使用Google Analytics数据源表计算BigQuery中每页的网页浏览量。我只想计算自定义页面内容分组为ProductList_UA或ProductDetails_UA的网页，并且我想修剪页面网址末尾的所有参数，以便返回更易于管理的网页列表

到目前为止，我的查询如下所示，但我的网页浏览量，退回和退出的数量太高（大约8倍） - 我哪里出错？

SELECT IFNULL(REGEXP_EXTRACT(hits.page.pagePath,r'^(.*?)\?'), hits.page.pagePath) AS Trimmed_Page, COUNT(hits.page.pagepath) AS Pageviews, SUM(totals.bounces) AS Bounces, SUM(IF(hits.isexit = TRUE, 1,0)) AS Exits, SUM(IF(hits.isentrance = TRUE, 1,0)) AS Entrances, MIN(hits.contentGroup.contentGroup3) AS Content_Group
FROM `xxx.ga_sessions_20*` AS m
  CROSS JOIN UNNEST(m.customdimensions) AS customDimension
  CROSS JOIN UNNEST(m.hits) AS hits
WHERE parse_date('%y%m%d', _table_suffix) between 
DATE_sub(current_date(), interval 1 day) and
DATE_sub(current_date(), interval 1 day)
AND (hits.contentGroup.contentGroup3 = 'ProductList_UA' OR hits.contentGroup.contentGroup3 = 'ProductDetails_UA')
AND hits.type="PAGE"
AND hits.isInteraction = TRUE
GROUP BY Trimmed_Page
ORDER BY Pageviews DESC
LIMIT 1000

Answer 1

我怀疑与customDimensions的交叉连接是您看到比预期更多结果的原因，因为每行匹配将乘以该行中的customDimensions数。没有交叉连接的实验，看它是否解决了这个问题。