adriangb commented on issue #16200: URL: https://github.com/apache/datafusion/issues/16200#issuecomment-2913898178
> Though since DataFusion knows what columns are needed for predicates (and thus would be used in pruning) we could easily disable loading the page index for the other columns 🤔 That's exactly my thought. You know which columns you need to filter on and after the ParquetOpener the metadata is discarded anyway, so there's no reason to read _any_ (row group or page) metadata / stats for columns you're not going to filter on. -- 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...@datafusion.apache.org For queries about this service, please contact Infrastructure at: us...@infra.apache.org --------------------------------------------------------------------- To unsubscribe, e-mail: github-unsubscr...@datafusion.apache.org For additional commands, e-mail: github-h...@datafusion.apache.org
