matthewmturner opened a new issue #1777:
URL: https://github.com/apache/arrow-datafusion/issues/1777


   **Is your feature request related to a problem or challenge? Please describe 
what you are trying to do.**
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frustrated when [...] 
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   I would like to add functionality for writing files from DataFusion.  To 
start, I've thought of the below.
   
   - [ ] (1) Add write functionality to `ObjectStore`
   - [ ] (2)Add `write_json` to `ExecutionContext`
   - [ ] (3) Add `write_ipc` to `ExecutionContext`
   - [ ] (4) Add `COPY` / `COPY TO` command for SQL (like postgres 
https://www.postgresql.org/docs/current/sql-copy.html)
   - [ ] (5) Add ability to write partitioned datasets
   - [ ] (6) Add support for writing metadata
   - [x] (7) Add `write_csv` method to `DataFrame` trait
   - [ ] (8) Add `write_parquet` method to `DataFrame` trait
   - [ ] (9) Add `write_ipc` method to `DataFrame` trait
   - [ ] (10) Add `write_json` method to `DataFrame` trait
   
   I will use this as a parent / tracker issue for the above points which will 
each have an issue.
   
   **Describe the solution you'd like**
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   **Describe alternatives you've considered**
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you've considered.
   
   **Additional context**
   Add any other context or screenshots about the feature request here.
   


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