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https://issues.apache.org/jira/browse/ARROW-10016?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17196825#comment-17196825
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Jorge commented on ARROW-10016:
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That is great! Go crazy, and let me know if you need any help :)
I am not working on tasks that I am not assigned to, by design. Feel free to
assign yourself to it, so that others know.
This way, we can build a backlog of items that anyone can pick if they want to
(which was the direction I was trying to head with the comment on github about
placing the `array_size` and others as issues here). :)
> [Rust] [DataFusion] Implement IsNull and IsNotNull
> --------------------------------------------------
>
> Key: ARROW-10016
> URL: https://issues.apache.org/jira/browse/ARROW-10016
> Project: Apache Arrow
> Issue Type: New Feature
> Components: Rust, Rust - DataFusion
> Reporter: Jorge
> Priority: Major
>
> Currently, DataFusion has the logical operator `isNull` and `IsNotNull`, but
> that operator has no physical implementation. Consequently, this operator
> cannot be used.
> The goal of this improvement is to add support to this operator on the
> physical plan.
> Note that these operators only care about the null bitmap, and thus should be
> implementable to all types supported by Arrow.
> Both operators should probably return a non-null `BooleanArray`.
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