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https://issues.apache.org/jira/browse/HIVE-12643?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15288034#comment-15288034
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Ashutosh Chauhan commented on HIVE-12643:
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[~mmccline] Can you also please take a look at this one? [~ndembla] tried it
out and reported this gives us a speed-up in query compile time.
> For self describing InputFormat don't replicate schema information in
> partitions
> --------------------------------------------------------------------------------
>
> Key: HIVE-12643
> URL: https://issues.apache.org/jira/browse/HIVE-12643
> Project: Hive
> Issue Type: Bug
> Components: Query Planning
> Affects Versions: 2.0.0
> Reporter: Ashutosh Chauhan
> Assignee: Ashutosh Chauhan
> Attachments: HIVE-12643.1.patch, HIVE-12643.2.patch,
> HIVE-12643.3.patch, HIVE-12643.3.patch, HIVE-12643.patch
>
>
> Since self describing Input Formats don't use individual partition schemas
> for schema resolution, there is no need to send that info to tasks.
> Doing this should cut down plan size.
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