Question

我在数据集中有一系列表，需要在FLATTENing其中一个重复记录时查询所有表。例如，像下面这样的查询工作正常：

 SELECT
   date,
   customDimensions.value AS customDimension,
   hits.page.pagePath AS pagePath
FROM
   (FLATTEN( [<projectId>:<datasetId>.ga_sessions_20130910] ,
   customDimensions)) 
WHERE
   hits.page.pagePath CONTAINS '/helmets' 
   AND customDimensions.index IN (1,2,3)

但是，我在使用表格通配符时遇到麻烦。有人可以帮我解决语法问题吗？是否可以将FLATTEN与TABLE_DATE_RANGE一起使用？

SELECT
   date,
   customDimensions.value AS customDimension,
   hits.page.pagePath AS pagePath
FROM
   (FLATTEN (TABLE_DATE_RANGE ([<project>:<dataset>.ga_sessions_],
   TIMESTAMP('2013-09-10'),
   TIMESTAMP ('2014-06-10'))),
   customDimensions) 
WHERE
   hits.page.pagePath CONTAINS '/helmets' 
   AND customDimensions.index IN (1,2,3)

谢谢，砂眼

Answer 1

根据参考手册，FLATTEN语法为：

...(FLATTEN ([project_name:]datasetId.tableId, flattenField))..
...(FLATTEN (subselect_clause, flattenField))..

基于此，我会尝试在FLATTEN语句中添加一个subselect子句，如下所示：

SELECT
date,
customDimensions.value AS customDimension,
hits.page.pagePath AS pagePath
FROM
FLATTEN(
(SELECT date, customDimensions, hits FROM TABLE_DATE_RANGE ([<project>:<dataset>.ga_sessions_],
TIMESTAMP('2013-09-10'),TIMESTAMP ('2014-06-10')))
, customDimensions)
WHERE
hits.page.pagePath CONTAINS '/helmets' 
AND customDimensions.index IN (1,2,3)

Answer 2

试试这个，它对我有用..

SELECT
   date,
   customDimensions.value AS customDimension,
   hits.page.pagePath AS pagePath
FROM
   (FLATTEN (SELECT * FROM TABLE_DATE_RANGE ([<project>:<dataset>.ga_sessions_],
   TIMESTAMP('2013-09-10'),
   TIMESTAMP ('2014-06-10'))),
   customDimensions) 
WHERE
   hits.page.pagePath CONTAINS '/helmets' 
   AND customDimensions.index IN (1,2,3)

带有TABLE_DATE_RANGE的FLATTEN

2 个答案: