tustvold opened a new issue, #2426: URL: https://github.com/apache/arrow-rs/issues/2426
**Is your feature request related to a problem or challenge? Please describe what you are trying to do.** <!-- A clear and concise description of what the problem is. Ex. I'm always frustrated when [...] (This section helps Arrow developers understand the context and *why* for this feature, in addition to the *what*) --> Even when there is an active row selection, `async_reader::ReaderFactory::read_row_group` will still fetch an entire column chunk from object storage. **Describe the solution you'd like** <!-- A clear and concise description of what you want to happen. --> In the event that we have an `OffsetIndex` we can identify the pages that overlap with the row selection, and only fetch the corresponding byte ranges. **Describe alternatives you've considered** <!-- A clear and concise description of any alternative solutions or features you've considered. --> We could not do this **Additional context** <!-- Add any other context or screenshots about the feature request here. --> This will likely benefit from `ObjectStore::get_ranges` added in #2336 being integrated into DataFusion to ensure the more granular ranges don't result in a regression, by making lots of small get requests -- 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]
