[jira] [Updated] (ARROW-403) [JAVA] UnionVector: Creating a transfer pair doesn't transfer the schema to destination vector

["Antoine Pitrou (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/ARROW-403?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Antoine Pitrou updated ARROW-403:
---------------------------------
    Component/s: Java

> [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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