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https://issues.apache.org/jira/browse/HIVE-1662?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13603487#comment-13603487
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Rajat Jain commented on HIVE-1662:
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We are following this patch because we wanted to implement something similar.
Is it possible if we can do the pruning much before this step - in
GenMapRedUtils.setTaskPlan. This will take care of the reducer estimation as
well. Are there any issues with this?
> Add file pruning into Hive.
> ---------------------------
>
> Key: HIVE-1662
> URL: https://issues.apache.org/jira/browse/HIVE-1662
> Project: Hive
> Issue Type: New Feature
> Reporter: He Yongqiang
> Assignee: Navis
> Attachments: HIVE-1662.D8391.1.patch, HIVE-1662.D8391.2.patch,
> HIVE-1662.D8391.3.patch, HIVE-1662.D8391.4.patch
>
>
> now hive support filename virtual column.
> if a file name filter presents in a query, hive should be able to only add
> files which passed the filter to input paths.
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