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From "Aman Sinha (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (DRILL-1465) Partition filter pushdown not happening for EasyGroupScan
Date Tue, 30 Sep 2014 00:03:07 GMT

     [ https://issues.apache.org/jira/browse/DRILL-1465?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Aman Sinha updated DRILL-1465:
------------------------------
    Attachment: 0001-DRILL-1465-Enhance-push-partition-filter-rule-to-han.patch

> Partition filter pushdown not happening for EasyGroupScan
> ---------------------------------------------------------
>
>                 Key: DRILL-1465
>                 URL: https://issues.apache.org/jira/browse/DRILL-1465
>             Project: Apache Drill
>          Issue Type: Bug
>          Components: Query Planning & Optimization
>    Affects Versions: 0.5.0
>            Reporter: Aman Sinha
>            Assignee: Aman Sinha
>         Attachments: 0001-DRILL-1465-Enhance-push-partition-filter-rule-to-han.patch
>
>
> For EasyGroupScan that handles Json and Text formats, we are not getting the directory
partition filters pushed down into the Scan.  One part of the reason is that the EasyGroupScan
digest for a new scan that has a smaller selection of files is currently the same as the previous
scan, so the planner ignores the new scan.  
> A second related issue is that the Filter can appear above either a Scan or a Project,
so we need to be able to handle both cases during pushdown. 



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