tustvold edited a comment on pull request #1990: URL: https://github.com/apache/arrow-datafusion/pull/1990#issuecomment-1065860904
I'm not sure I follow how this will work, parquet files have a block structure internally that is not amenable to seeking. Particularly with RLE data, it is common for a column chunk to consist of a single page. Could you maybe expand a bit on this? On a more holistic level, is there some prior art on parellelising parquet reads, I've only ever encountered file and rarely row group parallelism... -- 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]
