bigquery sql 中超出的资源

Question

我有一个删除重复项的简单 cte 查询。

with cte as (
   select     Agent_SK
    , Listing_Agent_License_Number
    , Listing_Agent_Name
    , Listing_Agent_Address
    , Listing_Agent_Phone
    , Listing_Agent_Email
    , Office_Name
    , Office_Address
    , Office_Phone
    , Office_Email
        , Update_Timestamp
        , ROW_NUMBER() OVER (PARTITION BY Listing_Agent_Name
                                        , Listing_Agent_Address
                                        , Listing_Agent_Phone
                                        , Listing_Agent_Email
                             ORDER BY Update_Timestamp DESC) AS rn
   from `mother-216719.VALUATION.MLS`
   where Agent_SK is not null
) select
    Agent_SK
    , Listing_Agent_License_Number
    , Listing_Agent_Name
    , Listing_Agent_Address
    , Listing_Agent_Phone
    , Listing_Agent_Email
    , Office_Name
    , Office_Address
    , Office_Phone
    , Office_Email
    , Update_Timestamp
from cte
where rn = 1;

此查询提供了超出的资源。我认为这与row_number() 功能有关。我该如何解决这个问题？

Answer 1

下面是 BigQuery 标准 SQL，应该可以解决问题

#standardSQL
WITH cte AS (
  SELECT     
    Agent_SK
    , Listing_Agent_License_Number
    , Listing_Agent_Name
    , Listing_Agent_Address
    , Listing_Agent_Phone
    , Listing_Agent_Email
    , Office_Name
    , Office_Address
    , Office_Phone
    , Office_Email
    , Update_Timestamp
  FROM `mother-216719.VALUATION.MLS`
  WHERE Agent_SK IS NOT NULL
) 
SELECT AS VALUE ARRAY_AGG(t ORDER BY Update_Timestamp DESC LIMIT 1)[OFFSET(0)] 
FROM cte t
GROUP BY     
  Listing_Agent_Name
  , Listing_Agent_Address
  , Listing_Agent_Phone
  , Listing_Agent_Email