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Posted to issues@spark.apache.org by "gaokui (Jira)" <ji...@apache.org> on 2022/02/09 09:08:00 UTC

[jira] [Created] (SPARK-38161) when clean data hope to spilt one dataframe or dataset to two dataframe

gaokui created SPARK-38161:
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             Summary: when clean data hope to spilt one dataframe or dataset  to two dataframe
                 Key: SPARK-38161
                 URL: https://issues.apache.org/jira/browse/SPARK-38161
             Project: Spark
          Issue Type: New Feature
          Components: Block Manager
    Affects Versions: 3.2.1
            Reporter: gaokui


when I am  processing  data clean, I meet such scene.

one coloumn need judge by empy or null condition.

so I do it right now similar code as following:

df1= dataframe.filter("coloumn=null")

df2= dataframe.filter("coloumn=!null")

and then write df1 and df2 into hdfs parquet file.

but when i have thousand condition. every job need more stage.

I hope dataframe can filter by one condition once and not twice. and that can generate two dataframe.

 

 

      



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