brancz opened a new issue, #18350: URL: https://github.com/apache/datafusion/issues/18350
### Is your feature request related to a problem or challenge? Quite simple: ListView, as opposed to List, is not supported by the `reverse` function, yet. ### Describe the solution you'd like Unless I'm misunderstanding the ListView spec, I think this should be possible by performing `offset + size - 1` to compute the new offsets and just `size * -1`. Hopefully, downstream usages use iterators and not regular for loops that assume strictly increasing indexes, but I'd call that a bug if they didn't. ### Describe alternatives you've considered Cast to List instead, however, based on some profiling we've done in the other direction (converting List to ListView), this is a terrible idea. ### Additional context _No response_ -- 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] --------------------------------------------------------------------- To unsubscribe, e-mail: [email protected] For additional commands, e-mail: [email protected]
