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https://issues.apache.org/jira/browse/ARROW-2244?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17659271#comment-17659271
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Rok Mihevc commented on ARROW-2244:
-----------------------------------
This issue has been migrated to [issue
#18204|https://github.com/apache/arrow/issues/18204] on GitHub. Please see the
[migration documentation|https://github.com/apache/arrow/issues/14542] for
further details.
> [C++] Slicing NullArray should not cause the null count on the internal data
> to be unknown
> ------------------------------------------------------------------------------------------
>
> Key: ARROW-2244
> URL: https://issues.apache.org/jira/browse/ARROW-2244
> Project: Apache Arrow
> Issue Type: Bug
> Components: C++
> Reporter: Wes McKinney
> Assignee: Wes McKinney
> Priority: Major
> Labels: pull-request-available
> Fix For: 0.9.0
>
>
> see https://github.com/apache/arrow/blob/master/cpp/src/arrow/array.cc#L101
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