使用多个字段与 IN ( ) 进行子查询

Question

在 Google BigQuery 中，我必须执行如下操作：

SELECT hits.item.productName
FROM [‘Dataset Name’ ]
WHERE date, visitId, fullVisitorId IN (
  SELECT date, visitId, fullVisitorId
  FROM [‘Dataset Name’ ]
  WHERE hits.item.productName CONTAINS 'Product Item Name A'
  AND totals.transactions>=1)

不过好像不支持这个。除了使用 JOIN，我还有什么选择？

Answer 1

改为执行 JOIN。

相当于：

SELECT COUNT(*), stn, a.wban, FIRST(name) name, FIRST(country) country
FROM [fh-bigquery:weather_gsod.gsod2014] a
WHERE stn, wban IN
  (SELECT usaf, wban FROM [fh-bigquery:weather_gsod.stations] WHERE country='UK')
GROUP BY 2, 3
ORDER BY 1 DESC

将是：

SELECT COUNT(*), stn, a.wban, FIRST(name) name, FIRST(country) country
FROM [fh-bigquery:weather_gsod.gsod2014] a
JOIN [fh-bigquery:weather_gsod.stations] b
ON a.stn=b.usaf AND a.wban=b.wban
WHERE country='UK'
GROUP BY 2, 3
ORDER BY 1 DESC

使用多个字段与 IN ( ) 进行子查询

Using more than one field with IN ( ) for a sub-query

google-analytics

google-bigquery