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https://issues.apache.org/jira/browse/ARROW-6352?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Micah Kornfield resolved ARROW-6352.
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Fix Version/s: 0.16.0
Resolution: Fixed
Issue resolved by pull request 5473
[https://github.com/apache/arrow/pull/5473]
> [Java] Add implementation of DenseUnionVector.
> ----------------------------------------------
>
> Key: ARROW-6352
> URL: https://issues.apache.org/jira/browse/ARROW-6352
> Project: Apache Arrow
> Issue Type: Improvement
> Components: Java
> Reporter: Micah Kornfield
> Assignee: Liya Fan
> Priority: Major
> Labels: pull-request-available
> Fix For: 0.16.0
>
> Time Spent: 7h 10m
> Remaining Estimate: 0h
>
> Today only Sparse unions are supported. We should have a dense union
> implementation vector that conforms to the IPC protocol (the current sparse
> union vector doesn't do this and there are other JIRAs covering making it
> compatible).
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