andygrove opened a new issue, #39:
URL: https://github.com/apache/datafusion-java/issues/39
### Is your feature request related to a problem or challenge?
`DataFrame.writeParquet` shipped in #27 and a CSV writer is filed
alongside this. JSON is the third writer DataFusion's DataFrame API
exposes natively (`DataFrame::write_json`), and is the easiest format
to consume from non-Arrow downstream tooling.
### Describe the solution you'd like
- Add a `JsonWriteOptions` value class (single-file output, partition
columns, compression).
- Add `proto/json_write_options.proto`, following the convention
established in #27.
- Expose `DataFrame.writeJson(path[, options])`.
- Cover with tests mirroring `DataFrameWriteParquetTest`.
### Describe alternatives you've considered
`COPY … TO …` via SQL.
### Additional context
In the default DataFusion feature set; no Cargo flag changes required.
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