adriangb commented on PR #8191: URL: https://github.com/apache/arrow-rs/pull/8191#issuecomment-3224641803
> @adriangb you've also been in the metadata space, perhaps you have some opinions I don't have a super strong opinion on the structure of the metadata as loaded from Thrift but what I will say is I would love if we could break up metadata loading into pieces. This is part something DataFusion could do, part up to Parquet itself. In my mind one of the the biggest mistakes / bottlenecks is trying to load row group stats as part of the thrift data. IMO the footer / thrift data should be basic metadata (the schema) + data offsets + index type and index offsets. Then the index types / offsets are used to load page indexes, bloom filters, row group zone maps and future types of indexes. But that's a very ambitious goal that I don't have the bandwidth to push for atm. -- 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]
