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Posted to issues@drill.apache.org by "Kunal Khatua (JIRA)" <ji...@apache.org> on 2018/05/31 20:54:00 UTC

[jira] [Updated] (DRILL-5046) Add documentation for directory based partition pruning

     [ https://issues.apache.org/jira/browse/DRILL-5046?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Kunal Khatua updated DRILL-5046:
--------------------------------
    Fix Version/s: 1.15.0

> Add documentation for directory based partition pruning
> -------------------------------------------------------
>
>                 Key: DRILL-5046
>                 URL: https://issues.apache.org/jira/browse/DRILL-5046
>             Project: Apache Drill
>          Issue Type: Bug
>          Components: Documentation
>    Affects Versions: 1.9.0
>            Reporter: Rahul Challapalli
>            Assignee: Bridget Bevens
>            Priority: Major
>             Fix For: 1.15.0
>
>
> Drill's documentation for partition pruning should cover the below 2 features
> 1. Directory based partition pruning
> 2. Partition pruning based on auto-partitioned parquet files
> The first one seems to be missing from our documentation. At the very least we should cover
> a. How we can leverage this feature to avoid full table scans
> b. How this feature works in-conjunction with metadata cache pruning
> c. A few examples which involve using wildcards for one of the sub-directories



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