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Posted to dev@arrow.apache.org by "Benjamin (Jira)" <ji...@apache.org> on 2020/02/19 13:22:00 UTC

[jira] [Created] (ARROW-7885) Serialize dask dataframe

Benjamin created ARROW-7885:
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             Summary: Serialize dask dataframe
                 Key: ARROW-7885
                 URL: https://issues.apache.org/jira/browse/ARROW-7885
             Project: Apache Arrow
          Issue Type: Wish
            Reporter: Benjamin


Currently pyarrow knows how to serialize pandas dataframes but not dask dataframes.
{code:java}
SerializationCallbackError: pyarrow does not know how to serialize objects of type <class 'dask.dataframe.core.DataFrame'>. {code}
Pickling the dask dataframe foregoes the benefits of using pyarrow for the sub dataframes.

Pyarrow support for serializing dask dataframes would allow storing dataframes efficiently in a database instead of a file system (e.g. parquet). 



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