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Posted to reviews@spark.apache.org by GitBox <gi...@apache.org> on 2020/06/13 06:00:05 UTC

[GitHub] [spark] wangyum commented on pull request #28032: [SPARK-31264][SQL] Repartition by dynamic partition columns before insert partition table

wangyum commented on pull request #28032:
URL: https://github.com/apache/spark/pull/28032#issuecomment-643575562


   Thank you @gengliangwang The root cause is repartition by dynamic partition columns can significantly reduce the number of files:
   ![image](https://user-images.githubusercontent.com/5399861/84561331-0d5e7480-ad7e-11ea-944c-3ed24403332b.png)
   ![image](https://user-images.githubusercontent.com/5399861/84561322-033c7600-ad7e-11ea-8c2c-7f93f48ee02a.png)
   


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