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https://issues.apache.org/jira/browse/HIVE-15066?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15730091#comment-15730091
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Prasanth Jayachandran commented on HIVE-15066:
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I think this will again introduce the perf issue that [~rajesh.balamohan]'s
patch fixed in HIVE-7052. Since we can't catch perf regression easily I think
we should be cautious that this doesn't introduce the perf issue again.
> push down projection is mismatched in HiveInputFormat
> -----------------------------------------------------
>
> Key: HIVE-15066
> URL: https://issues.apache.org/jira/browse/HIVE-15066
> Project: Hive
> Issue Type: Bug
> Components: File Formats
> Affects Versions: 2.1.0
> Reporter: Jeongdae Kim
> Assignee: Jeongdae Kim
> Attachments: HIVE-15066.1.patch
>
>
> if HiveInputFormat.getSplits() is called with more than one table,
> inputFormatClass.getSplits() for the first table will be called with read
> column information for the second table.
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