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https://issues.apache.org/jira/browse/ARROW-7406?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Micah Kornfield resolved ARROW-7406.
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Fix Version/s: 0.16.0
Resolution: Fixed
Issue resolved by pull request 6045
[https://github.com/apache/arrow/pull/6045]
> [Java] NonNullableStructVector#hashCode should pass hasher to child vectors
> ---------------------------------------------------------------------------
>
> Key: ARROW-7406
> URL: https://issues.apache.org/jira/browse/ARROW-7406
> Project: Apache Arrow
> Issue Type: Bug
> Components: Java
> Reporter: Ji Liu
> Assignee: Ji Liu
> Priority: Major
> Labels: pull-request-available
> Fix For: 0.16.0
>
> Time Spent: 40m
> Remaining Estimate: 0h
>
> This was introduced by ARROW-6866 making parameter hasher useless in
> hashCode(int index, {{ArrowBufHasher}} hasher), and the child vectors would
> calculate hashCode using default hasher which is not correct.
> This issue should be fixed by passing hasher to child vector when calculating
> hashCode.
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