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https://issues.apache.org/jira/browse/SPARK-35807?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Haejoon Lee updated SPARK-35807:
--------------------------------
Description:
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.
was:
We should rename 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.
Or we just can remove, and use the
+[DataFrame.spark.repartition|https://koalas.readthedocs.io/en/latest/reference/api/databricks.koalas.DataFrame.spark.repartition.html]+
as a work around.
> 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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