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https://issues.apache.org/jira/browse/HIVE-2187?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13041990#comment-13041990
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Ning Zhang commented on HIVE-2187:
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+1
> Mappers across multiple partitions with different SerDe failed
> --------------------------------------------------------------
>
> Key: HIVE-2187
> URL: https://issues.apache.org/jira/browse/HIVE-2187
> Project: Hive
> Issue Type: Bug
> Reporter: Ning Zhang
> Assignee: He Yongqiang
> Attachments: HIVE-2187.1.patch
>
>
> If 2 partitions have the same input file format, but different serde, we
> should not combine them into the same mapper. Otherwise the mapper will fail.
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