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https://issues.apache.org/jira/browse/ARROW-9682?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Lance Dacey closed ARROW-9682.
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Resolution: Not A Problem
This works using ds.write_dataset()
> [Python] Unable to specify the partition style with pq.write_to_dataset
> -----------------------------------------------------------------------
>
> Key: ARROW-9682
> URL: https://issues.apache.org/jira/browse/ARROW-9682
> Project: Apache Arrow
> Issue Type: Improvement
> Components: Python
> Affects Versions: 1.0.0
> Environment: Ubuntu 18.04
> Python 3.7
> Reporter: Lance Dacey
> Priority: Major
> Labels: dataset-parquet-write, parquet, parquetWriter
>
> I am able to import and test DirectoryPartitioning but I am not able to
> figure out a way to write a dataset using this feature. It seems like
> write_to_dataset defaults to the "hive" style. Is there a way to test this?
> {code:java}
> from pyarrow.dataset import DirectoryPartitioning
> partitioning = DirectoryPartitioning(pa.schema([("year", pa.int16()),
> ("month", pa.int8()), ("day", pa.int8())]))
> print(partitioning.parse("/2009/11/3"))
> {code}
>
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