根据来自 2 个不同命中级别数据 Bigquery 的值选择 VISITID

Question

我的表中有一个 FULLVISITORID，有 2 个不同的访问 ID。

每个visitid 都有多个命中。我想选择一个 hits.page.pagepath = 'somepage' 的 visitid 和另一个 hits.eventInfo.eventCategory = 'some event'。对于同一个访问 ID，这两种情况都应该发生。

例如：

从my_table 中选择 *，其中 FullVisitorid = '1'

FullVisitorid    Visitid   ........... hits.page.pagepath .....hits.event.eventCategory
    1              123                       A                       abc
                                             B                       cde 
                                             c                       efg
    1              147                      somePage                 ggg
                                             D                       fff
                                             E                       SomeEvent 

我希望结果是 VistiID = 147，因为 visitid 同时具有 pagepath = 'somepage' 和 eventcategory = 'someevent'

感谢您的帮助！

Answer 1

使用 CTE，您可以使用简单的连接逻辑来获得结果。

with unnested as (
-- Get the fields you care about
  select FullVisitorid, Visitid, h.page.pagepath, h.event.eventCategory
  from `dataset.table`
  left join unnest(hits) h
),
somepage as (
-- Get somepage hit Visitids
  select FullVisitorid, Visitid
  from unnested
  where pagepath = 'somepage'
  group by 1,2
),
someevent as (
-- Get someevent hit Visitids
  select FulVisitorid, Visitid
  from unnested
  where eventCategory = 'someevent'
  group by 1,2
),
joined as (
-- Join the CTEs to get common Visitids
  select FulVisitorid, Visitid
  from somepage
  inner join someevent using(FullVisitorid, Visitid)
)
select * from joined