[
https://issues.apache.org/jira/browse/SPARK-38161?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17619262#comment-17619262
]
gaokui commented on SPARK-38161:
--------------------------------
yes，i can use two dataframe fitler or not filter;
but when i face two thousand condtion, i need write four thousand times.
and terrble dag job with poor performance.
> 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: SQL
> Affects Versions: 3.2.1
> Reporter: gaokui
> Priority: Major
>
> 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.
>
>
>
--
This message was sent by Atlassian Jira
(v8.20.10#820010)
---------------------------------------------------------------------
To unsubscribe, e-mail: [email protected]
For additional commands, e-mail: [email protected]
