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Posted to dev@drill.apache.org by "Stefán Baxter (JIRA)" <ji...@apache.org> on 2015/09/25 00:23:04 UTC

[jira] [Created] (DRILL-3838) Ability to use UDFs in the directory pruning process

Stefán Baxter created DRILL-3838:
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             Summary: Ability to use UDFs in the directory pruning process
                 Key: DRILL-3838
                 URL: https://issues.apache.org/jira/browse/DRILL-3838
             Project: Apache Drill
          Issue Type: New Feature
          Components: Query Planning & Optimization
    Affects Versions: 1.2.0
            Reporter: Stefán Baxter


This feature request is about allowing UDFs to participate in the Directory/Partition pruning process at runtime rather than at planing/optimization time.

For this a UDF needs:
 - filename
 - full path (not just dirN)
 - to be able to throw a IgnoreFile exception
 - to be able to throw a IgnoreDirecotyr exception

I think the naming is pretty self explanatory and hopefully this brief description is enough.

_Stefan 




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