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From "Rahul Challapalli (JIRA)" <j...@apache.org>
Subject [jira] [Created] (DRILL-3788) Partition Pruning not taking place with metadata caching when we have ~20k files
Date Wed, 16 Sep 2015 01:05:46 GMT
Rahul Challapalli created DRILL-3788:
----------------------------------------

             Summary: Partition Pruning not taking place with metadata caching when we have
~20k files
                 Key: DRILL-3788
                 URL: https://issues.apache.org/jira/browse/DRILL-3788
             Project: Apache Drill
          Issue Type: Bug
          Components: Query Planning & Optimization
    Affects Versions: 1.2.0
            Reporter: Rahul Challapalli
            Assignee: Jinfeng Ni
            Priority: Critical
             Fix For: 1.2.0


git.commit.id.abbrev=240a455

Partition Pruning did not take place for the below query after I executed the "refresh table
metadata command"
{code}
 explain plan for 
select
  l_returnflag,
  l_linestatus
from
  `lineitem/2006/1`
where
  dir0=1 or dir0=2
{code}

The logs did not indicate that "pruning did not take place"

Before executing the refresh table metadata command, partition pruning did take effect

I am not attaching the data set as it is larger than 10MB. Reach out to me if you need more
information




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