tustvold commented on issue #9302: URL: https://github.com/apache/arrow-rs/issues/9302#issuecomment-3819312268
Perhaps https://arrow.apache.org/blog/2022/10/08/arrow-parquet-encoding-part-2/ might clarify this. Nullability at the StructArray level refers to whether that level in the hierarchy can have nulls, it says nothing about whether lower levels in the hierarchy can be null. For example, a nullable StructArray would allow ``` [{"foo": null}, {"foo": null}, {}] ``` But not ``` [null, {"foo": 1}] ``` -- 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]
