waynexia commented on pull request #8856: URL: https://github.com/apache/arrow/pull/8856#issuecomment-739872518
> There are some points I'm not very clear about ... For the first one, thanks to @jorgecarleitao. This is not a problem that should be considered when implementing `list_sort`. For the second point, I find some examples and think I can make it clear. `List Array` is an (at least) two-level ArrayData with `valids_bitmap` on each level to represent nulls in `List` itself and its child data. ---------------------------------------------------------------- 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. For queries about this service, please contact Infrastructure at: [email protected]
