在 bigquery 中按每個組查找前 100 個值

Question

嗨，我有這樣的數據（表名：topcount）

    ID     Value       Count_total
    1      Sam         3008
    1      Sarah       5677
    3      Gil         3455
    2      Gil         4555
...

我想找到每個 ID 的前 100 個值的計數。

到目前為止我已經嘗試過了-

 with top1000 as (select ID, ARRAY_AGG(STRUCT(count_total) ORDER BY count_total DESC LIMIT 1000) as top from topcount group by app_id) select app_id, sum(top.count_total) from top1000

我如何有效地寫這個？

Answer 1

考慮以下方法

select * from your_table
qualify row_number() over(partition by ID order by Count_total desc) <= 100