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Posted to github@arrow.apache.org by GitBox <gi...@apache.org> on 2021/01/28 03:02:44 UTC

[GitHub] [arrow] jorgecarleitao commented on pull request #9331: ARROW-11407: [Rust] Propagate nulls if all results are null.

jorgecarleitao commented on pull request #9331:
URL: https://github.com/apache/arrow/pull/9331#issuecomment-768764568


   Interesting. I would expect that when an expression is all nulls, it would still be an array of the type declared on the `DataType` and not a `NullArray`. Do you have an example where we get a `NullArray` but its `DataType` is not `DataType::Null`? 


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