Question

我有一个案例陈述，对下面的互动进行评分，我的问题与这一行有关：当hits.eventInfo.eventAction CONTAINS“Basket Icon Click”然后5 else 0 end +

当使用值5,10,15运行时，它不会增加分数，如果我将值设置为1000，那么这确实会影响分数。谁能解释一下这里发生了什么？

select visitID, ROUND(SUM(Session_Score)/SUM(totals.hits),2) as Session_Score
from (
    select *,
      case when totals.pageviews > 2 then 5 else 0 end +
      case when totals.pageviews > 5 then 10 else 0 end +
      case when totals.pageviews > 10 then 20 else 0 end +
      case when totals.transactions > 0 then 100 else 0 end +
      case when hits.page.pagePath CONTAINS "Checkout" then 50 else 0 end +
      case when hits.page.pagePath CONTAINS "SignIn" then 30 else 0 end +
      case when hits.eventInfo.eventAction CONTAINS "Basket Icon Click" then 5 else 0 end +
      case when geoNetwork.country = "United Kingdom" then 1 else 0 end +
      case when hits.hour = 20 then 1 else 0 end +
      case when hits.hour = 21 then 1 else 0 end +
      case when hits.hour = 22 then 1 else 0 
      end as Session_Score
    from [tbl]
) scored

GROUP by visitID
order by Session_Score desc

Answer 1

我认为这是因为你正在使用ROUND（...）。如果你没有ROUND（）Session_Score，它是否正确改变了？

另外，有关如何重写到standardSql的一些指导。这不是替代品，但您确实需要将CONTAINS "foo"更改为LIKE "%foo%"。如果你有任何重复的字段，你可能需要做一些相关的交叉连接（我不能从你的例子中说出来）。

#standardSQL
WITH
  tbl AS (
  SELECT
    1 AS visitID,
    10 AS pageviews,
    1 AS hits,
    "Checkout SignIn" AS pagePath,
    "Basket Icon Click" AS eventAction)
SELECT
  visitID,
  ROUND(SUM(Session_Score)/SUM(hits), 2) AS Session_Score
FROM (
  SELECT
    *,
    CASE
      WHEN pageviews > 2 THEN 5
      ELSE 0
    END +
    CASE
      WHEN pageviews > 5 THEN 10
      ELSE 0
    END +
    CASE
      WHEN pageviews > 10 THEN 20
      ELSE 0
    END +
    CASE
      WHEN pagePath LIKE "%Checkout%" THEN 50
      ELSE 0
    END +
    CASE
      WHEN pagePath LIKE "%SignIn%" THEN 30
      ELSE 0
    END +
    CASE
      WHEN eventAction LIKE "%Basket Icon Click%" THEN 5
      ELSE 0
    END as Session_Score
  FROM
    tbl)
GROUP BY
  visitID
ORDER BY
  Session_score DESC

案例功能评分未正确汇总

1 个答案: