Sql 在另一列为max的列上联接表

在PostgreSQL中，我试图在第一个选择列表中选择具有最新ff.sub_日期的列。ff表中唯一的值是object_id，这是我需要连接的对象。我的尝试如下：

SELECT r0.ein, "TtlRvAndExpnssAmt" AS "Revenue", "TtlAsstsEOYFMVAmt" AS "Assets",
       "CmpOfcrDrTrstRvAndExpnssAmt" AS "Compensation & Benefits Expense" 
FROM filing_filing ff
JOIN return_pf_part_0 r0 ON ff.object_id = r0.object_id
JOIN return_pf_part_i r1 ON ff.object_id = r1.object_id
JOIN return_pf_part_ii r2 ON ff.object_id = r2.object_id
WHERE (ff.ein, sub_date) IN (SELECT ff.ein, max(sub_date)
                             FROM filing_filing ff
                             GROUP BY ff.ein)
  AND ff.ein = '456829368';

看起来我在子查询中真正需要的是包含列object_id，但我不能这样做，因为我不能按它分组

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注意：稍后，WHERE子句将包含一个很长的ff.EIN列表

您可以这样做预筛选您的归档表吗

WITH Filing as (Select * from 
(Select object_id, sub_date, ein, DENSE_RANK() OVER (Order by SubDate desc) as drank 
from filing_filing) aa where aa.drank=1)

SELECT r0.ein, "TtlRvAndExpnssAmt" AS "Revenue", "TtlAsstsEOYFMVAmt" AS "Assets",
       "CmpOfcrDrTrstRvAndExpnssAmt" AS "Compensation & Benefits Expense" 
FROM filing ff
JOIN return_pf_part_0 r0 ON ff.object_id = r0.object_id
JOIN return_pf_part_i r1 ON ff.object_id = r1.object_id
JOIN return_pf_part_ii r2 ON ff.object_id = r2.object_id
WHERE (ff.ein, sub_date) IN (SELECT ff.ein, max(sub_date)
                             FROM filing_filing ff
                             GROUP BY ff.ein)
  AND ff.ein = '456829368';

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尝试使用窗口函数（

ROW\u NUMBER（）

下面使用，但如果2条记录具有相同的

子日期

，则可以选择

RANK（）

）：

SELECT r0.ein, "TtlRvAndExpnssAmt" AS "Revenue", "TtlAsstsEOYFMVAmt" AS "Assets",
   "CmpOfcrDrTrstRvAndExpnssAmt" AS "Compensation & Benefits Expense" 
FROM (
    SELECT *, ROW_NUMBER() OVER (PARTITION BY ein ORDER BY sub_date DESC) AS RowNumber
    FROM filing_filing
) ff
JOIN return_pf_part_0 r0 ON ff.object_id = r0.object_id
JOIN return_pf_part_i r1 ON ff.object_id = r1.object_id
JOIN return_pf_part_ii r2 ON ff.object_id = r2.object_id
WHERE ff.rownumber = 1