alamb commented on PR #7479: URL: https://github.com/apache/arrow-rs/pull/7479#issuecomment-2858720265
> Thanks @alamb. I was just looking at this again because I'd like to see a coercion in DF to keep dictionaries if possible. I think it is always possible to read Parquet data as dictionaries (at least for strings, we might have to add code / tests for other types). I think it would make sense to allow writing DictionaryArrays for other types if it isn't already supported. As I recall one potential complication is that the same column is stored in multiple pages, and each page can have different encodings (e.g. some pages are dictionary encoded and some are plain). -- 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: github-unsubscr...@arrow.apache.org For queries about this service, please contact Infrastructure at: us...@infra.apache.org
