devinjdangelo commented on issue #1718: URL: https://github.com/apache/arrow-rs/issues/1718#issuecomment-1709213923
> One option might be for systems like DataFusion with a notion of partitioning to simply write each partition to separate memory regions, and then later stitch these together using the [append_column](https://docs.rs/parquet/latest/parquet/file/writer/struct.SerializedRowGroupWriter.html#method.append_column) APIs 🤔 I like the idea of DataFusion and other arrow-rs users having control over how this is parallelized in terms of threads vs. tokio. My original thought was creating a Send+Sync parquet::ArrowWriter , but I think serializing to independent memory regions and concatenating sounds slick. I found https://github.com/apache/arrow-rs/blob/master/parquet/src/bin/parquet-concat.rs. The only thing that it doesn't do we would want in DataFusion is support for bloom filters. I could see how merging bloom filters could be a bit complicated though. -- 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]
