如何左连接自定义维度和事务

Question

我保留了自定义维度（用户 ID 和商家）的联接值。我还想添加交易。我可以就如何将其添加到此查询中获得一些建议吗？还是我必须完全改变结构？这就是我尝试的方式，但我收到一个语法错误，提示它需要 FROM 语句所在的结束输入。

merchants.merchant_Id,
otherMerchants.merchant_id AS otherMerchants,
merchants.market AS market,
COUNT (merchants.transactions) AS transactions,
COUNT(DISTINCT merchants.userId) users
FROM(

SELECT 
#här hämtar vi alla userIds och merchantIds
(SELECT VALUE FROM UNNEST(customDimensions) WHERE INDEX = 3) userid,
(SELECT VALUE FROM UNNEST(customDimensions) WHERE INDEX = 4) merchant_Id,
(SELECT VALUE FROM UNNEST (customDimensions) WHERE INDEX = 8) market,
hits.transaction.transactionId) as transactions

 FROM `qliro-66ee8.128389777.ga_sessions_20210628`
 UNNEST (hits) AS hits
) merchants

LEFT JOIN 

(
SELECT 
#här hämtar vi alla userIds och merchantIds igen för att kunna nyckla ihop det
(SELECT VALUE FROM UNNEST(customDimensions) WHERE INDEX = 3) userid,
(SELECT VALUE FROM UNNEST(customDimensions) WHERE INDEX = 4) merchant_id,
(SELECT VALUE FROM UNNEST (customDimensions) WHERE INDEX = 8) market,
hits.transaction.transactionId) as transactions

 FROM `qliro-66ee8.128389777.ga_sessions_20210628`
 UNNEST (hits) AS hits
) otherMerchants

#nycklar på att det är samma user samt inte samma merchant för att inte få dubbelräkning
#nycklar på att det är samma user samt inte samma merchant för att inte få dubbelräkning
ON merchants.userId = otherMerchants.userid
AND merchants.merchant_Id != otherMerchants.merchant_id
AND merchants.transactions = otherMerchants.transactions
AND merchants.market = otherMerchants.market

GROUP BY 1,2,3

Answer 1

我认为你非常接近！你应该这样做

SELECT
merchants.merchant_Id,
otherMerchants.merchant_id AS otherMerchants,
merchants.market AS market,
SUM(merchants.transactions) AS transactions,
COUNT(DISTINCT merchants.userId) users
FROM(

SELECT 
(SELECT VALUE FROM UNNEST(t1.customDimensions) WHERE INDEX = 3) userid,
(SELECT VALUE FROM UNNEST(t1.customDimensions) WHERE INDEX = 4) merchant_Id,
(SELECT VALUE FROM UNNEST (t1.customDimensions) WHERE INDEX = 8) market,
count(distinct hits.transaction.transactionId) as transactions

 FROM `qliro-66ee8.128389777.ga_sessions_20210628` t1,
 UNNEST (hits) AS hits
 GROUP BY 1,2,3
) merchants

LEFT JOIN 

(
SELECT 
#här hämtar vi alla userIds och merchantIds igen för att kunna nyckla ihop det
(SELECT VALUE FROM UNNEST(customDimensions) WHERE INDEX = 3) userid,
(SELECT VALUE FROM UNNEST(customDimensions) WHERE INDEX = 4) merchant_id,
(SELECT VALUE FROM UNNEST (customDimensions) WHERE INDEX = 8) market

 FROM `qliro-66ee8.128389777.ga_sessions_20210628`
) otherMerchants

ON merchants.userId = otherMerchants.userid
AND merchants.merchant_Id != otherMerchants.merchant_id
AND merchants.market = otherMerchants.market

GROUP BY 1,2,3

编辑：查询中缺少 GROUP BY 语句

如何左连接自定义维度和事务

How to left join both custom dimensions and transactions

transactions

left-join

google-bigquery

custom-dimensions