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https://issues.apache.org/jira/browse/HIVE-17731?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16195292#comment-16195292
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Jesus Camacho Rodriguez commented on HIVE-17731:
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LGTM, +1 (pending tests)
> add a backward compat option for external users to HIVE-11985
> -------------------------------------------------------------
>
> Key: HIVE-17731
> URL: https://issues.apache.org/jira/browse/HIVE-17731
> Project: Hive
> Issue Type: Bug
> Reporter: Sergey Shelukhin
> Assignee: Sergey Shelukhin
> Attachments: HIVE-17731.patch
>
>
> See HIVE-11985.
> Some external callers (e.g. Presto) do not appear to process types from
> deserializer correctly, relying on DB types. Ideally, it should be resolved
> via HIVE-17714, hiding the custom SerDe logic from users.
> For now we can add a backward compatibility config for such cases.
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