如何从配置单元获取最新的分区数据 [英] How to getting latest partition data from hive

问题描述

我需要从具有最新分区的配置单元中的表中获取所有记录.该表由date,year,month分区，例如(date=25,year=2020,month=3)，同样会有很多分区.

I need to fetch all records from a table in hive which is having latest partitions. The table is partitioned by date,year,month eg (date=25,year=2020,month=3), likewise there will be many partitions.

分区不是静态的，它将经常更改.我正在尝试获取查询中的最新分区. 有人可以帮我写查询吗?

The partitions are not static and it will be changing frequently. I am trying to handle of getting the latest partition in the query. Can anybody help me to write the query?

推荐答案

尝试一下:

select * 
  from your_table t
 where concat_ws('-',t.year,t.month,t.date) in (select max(concat_ws('-',s.year,s.month,s.date)) from your_table s)

也请阅读以下相关答案:

Also read these related answers:

https://stackoverflow.com/a/59675908/2700344

https://stackoverflow.com/a/41952357/2700344

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