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Posted to issues@spark.apache.org by "Haejoon Lee (Jira)" <ji...@apache.org> on 2021/07/19 04:12:00 UTC

[jira] [Reopened] (SPARK-35807) Deprecate the `num_files` argument

     [ https://issues.apache.org/jira/browse/SPARK-35807?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Haejoon Lee reopened SPARK-35807:
---------------------------------

Re open and change the title & description.

We should deprecate, rather than remove for now to preserve breaking existing users code.

> Deprecate the `num_files` argument
> ----------------------------------
>
>                 Key: SPARK-35807
>                 URL: https://issues.apache.org/jira/browse/SPARK-35807
>             Project: Spark
>          Issue Type: Sub-task
>          Components: PySpark
>    Affects Versions: 3.2.0
>            Reporter: Haejoon Lee
>            Priority: Major
>
> We should deprecate the num_files argument in [DataFrame.to_csv |https://koalas.readthedocs.io/en/latest/reference/api/databricks.koalas.DataFrame.to_csv.html]and [DataFrame.to_json|https://koalas.readthedocs.io/en/latest/reference/api/databricks.koalas.DataFrame.to_json.html].
> Because the behavior of num_files is not actually specify the number of files, but it specifies the number of partition.
> So we should encourage users to use [DataFrame.spark.repartition|https://koalas.readthedocs.io/en/latest/reference/api/databricks.koalas.DataFrame.spark.repartition.html] instead in the warning message.



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