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https://issues.apache.org/jira/browse/ARROW-1568?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17116050#comment-17116050
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Wes McKinney commented on ARROW-1568:
-------------------------------------
This can be implemented as a {{arrow::compute::VectorFunction}} because the
size of the array is changed, so this function is not valid in a SQL-like
context
> [C++] Implement "drop null" kernels that return array without nulls
> -------------------------------------------------------------------
>
> Key: ARROW-1568
> URL: https://issues.apache.org/jira/browse/ARROW-1568
> Project: Apache Arrow
> Issue Type: New Feature
> Components: C++
> Reporter: Wes McKinney
> Priority: Major
> Labels: Analytics
>
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