ahlag commented on issue #11836: URL: https://github.com/apache/arrow-rs/issues/11836#issuecomment-6488750675
I'd like to take this. My plan is to mirror #11731 on the `MutableArrayData` side: when a struct or fixed-size list extends its children with nulls, a union child with no nullable field gets copies of an existing value instead, since the parent's validity already masks those slots. Other children keep using `try_extend_nulls`. Two questions before I open a PR: 1. If every source array is empty there's nothing to copy, so I'd keep returning the error. Is that OK? 2. Should run-end encoded children whose values field isn't nullable get the same treatment here, or leave that to #11835? -- 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]
