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https://issues.apache.org/jira/browse/ARROW-403?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17657437#comment-17657437
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Rok Mihevc commented on ARROW-403:
----------------------------------
This issue has been migrated to [issue
#16045|https://github.com/apache/arrow/issues/16045] on GitHub. Please see the
[migration documentation|https://github.com/apache/arrow/issues/14542] for
further details.
> [JAVA] UnionVector: Creating a transfer pair doesn't transfer the schema to
> destination vector
> ----------------------------------------------------------------------------------------------
>
> Key: ARROW-403
> URL: https://issues.apache.org/jira/browse/ARROW-403
> Project: Apache Arrow
> Issue Type: Bug
> Components: Java
> Reporter: Venki Korukanti
> Priority: Major
> Fix For: 0.2.0
>
>
> UnionVector srcVector;
> UnionVector destVector;
> TransferPair pair = srcVector.makeTransferPair(destVector)
> Schema of the destination vector is an empty UNION, no child types. Schema is
> not transferred until the actual transfer happens.
> Issue is we are not creating the transfers for child vectors in UnionVector.
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