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https://issues.apache.org/jira/browse/HIVE-23529?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Mustafa Iman updated HIVE-23529:
--------------------------------
    Attachment: HIVE-23529.patch
        Status: Patch Available  (was: Open)

> CTAS is broken for uniontype when row_deserialize
> -------------------------------------------------
>
>                 Key: HIVE-23529
>                 URL: https://issues.apache.org/jira/browse/HIVE-23529
>             Project: Hive
>          Issue Type: Bug
>            Reporter: Mustafa Iman
>            Assignee: Mustafa Iman
>            Priority: Major
>         Attachments: HIVE-23529.patch
>
>
> CTAS queries fail when there is a uniontype in source table and 
> hive.vectorized.use.vector.serde.deserialize=false.
> ObjectInspectorUtils.copyToStandardObject in ROW_DESERIALIZE path extracts 
> the value from union type. However, VectorAssignRow expects a StandardUnion 
> object causing ClassCastException for any CTAS query.



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