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Posted to issues@arrow.apache.org by "Adam Lippai (Jira)" <ji...@apache.org> on 2019/09/17 12:47:00 UTC

[jira] [Created] (ARROW-6579) [Python] Parallel pyarrow.parquet.write_to_dataset

Adam Lippai created ARROW-6579:
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             Summary: [Python] Parallel pyarrow.parquet.write_to_dataset
                 Key: ARROW-6579
                 URL: https://issues.apache.org/jira/browse/ARROW-6579
             Project: Apache Arrow
          Issue Type: Improvement
    Affects Versions: 0.14.1
            Reporter: Adam Lippai


pyarrow.parquet.write_to_dataset() is single-threaded now and converts the table from/to Pandas. We should lower the dataset writing to C++ (dropping Pandas usage) so it's easier to write the partitioned dataset using multiple threads.



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