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https://issues.apache.org/jira/browse/DRILL-3560?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14653057#comment-14653057
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Stefán Baxter commented on DRILL-3560:
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Hi,
Strange, for the tests we did this was evaluated for all the records in all
the files in all the directories.
Let me see if I can create a test-case for you.
Regards,
-Stefan
> Make partition pruning work for directory queries
> -------------------------------------------------
>
> Key: DRILL-3560
> URL: https://issues.apache.org/jira/browse/DRILL-3560
> Project: Apache Drill
> Issue Type: New Feature
> Components: Query Planning & Optimization
> Affects Versions: 1.1.0
> Reporter: Stefán Baxter
> Assignee: Aman Sinha
> Attachments: table.tar
>
>
> Currently queries that include directory conditions are not optimized at all
> and the directory expression (dir0 = 'something') is evaluated for every
> record of every file for every directory.
> This could be optimized to fail directories and allow for the same kind of
> partition pruning for directories as for other scenarios where data has been
> partitioned.
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