etseidl commented on PR #8885: URL: https://github.com/apache/arrow-rs/pull/8885#issuecomment-3555390432
> For a column chunk with just nulls a dictionary with 0 length seems fine. But the Parquet spec mandates that at least the bitwidth is written to the data page. https://github.com/apache/parquet-format/blob/master/Encodings.md#dictionary-encoding-plain_dictionary--2-and-rle_dictionary--8 0 would be a valid bitwidth, followed by no encoded data. -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: [email protected] For queries about this service, please contact Infrastructure at: [email protected]
