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https://issues.apache.org/jira/browse/ARROW-1567?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17116049#comment-17116049
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Wes McKinney commented on ARROW-1567:
-------------------------------------

We can implement a new function with kernels of form {{(array[T], scalar[T]) -> 
array[T]}}

> [C++] Implement "fill null" kernels that replace null values with some scalar 
> replacement value
> -----------------------------------------------------------------------------------------------
>
>                 Key: ARROW-1567
>                 URL: https://issues.apache.org/jira/browse/ARROW-1567
>             Project: Apache Arrow
>          Issue Type: New Feature
>          Components: C++
>            Reporter: Wes McKinney
>            Priority: Major
>              Labels: Analytics
>




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