yongster commented on PR #10994: URL: https://github.com/apache/arrow-rs/pull/10994#issuecomment-5628910241
@Jefffrey the nested-union Codex case is now covered in e61862695. `take` no longer picks a child just because `field.is_nullable()` is set. It requires a descendant that can physically store an introduced null (`field_can_represent_take_null`). Sparse unused children are taken with dummy indices, so a nullable-marked nested union that cannot represent nulls is not taken as if it were the null child. The struct-masked non-nullable REE/Union case is still a follow-up: that is a struct `take` contract (parent validity already masks the row; child values at those slots are unspecified), not union child selection. -- 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]
