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https://issues.apache.org/jira/browse/ARROW-9037?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Francois Saint-Jacques resolved ARROW-9037.
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Fix Version/s: 1.0.0
Resolution: Fixed
Issue resolved by pull request 7353
[https://github.com/apache/arrow/pull/7353]
> [C++][C] unable to import array with null count == -1 (which could be
> exported)
> -------------------------------------------------------------------------------
>
> Key: ARROW-9037
> URL: https://issues.apache.org/jira/browse/ARROW-9037
> Project: Apache Arrow
> Issue Type: Bug
> Components: C++
> Affects Versions: 0.17.1
> Reporter: Zhuo Peng
> Assignee: Zhuo Peng
> Priority: Major
> Labels: pull-request-available
> Fix For: 1.0.0
>
> Time Spent: 20m
> Remaining Estimate: 0h
>
> If an Array is created with null_count == -1 but without any null (and thus
> no null bitmap buffer), then ArrayData.null_count will remain -1 when
> exporting if null_count is never computed. The exported C struct also has
> null_count == -1 [1]. But when importing, if null_count != 0, an error [2]
> will be raised.
> [1]
> https://github.com/apache/arrow/blob/5389008df0267ba8d57edb7d6bb6ec0bfa10ff9a/cpp/src/arrow/c/bridge.cc#L560
> [2]
> https://github.com/apache/arrow/blob/5389008df0267ba8d57edb7d6bb6ec0bfa10ff9a/cpp/src/arrow/c/bridge.cc#L1404
>
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