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From "Rahul Challapalli (JIRA)" <j...@apache.org>
Subject [jira] [Created] (DRILL-4828) We are not reading from sub-directory cache when we have a filter on an auto-partition column
Date Thu, 04 Aug 2016 22:00:22 GMT
Rahul Challapalli created DRILL-4828:
----------------------------------------

             Summary: We are not reading from sub-directory cache when we have a filter on
an auto-partition column
                 Key: DRILL-4828
                 URL: https://issues.apache.org/jira/browse/DRILL-4828
             Project: Apache Drill
          Issue Type: Bug
          Components: Query Planning & Optimization
    Affects Versions: 1.7.0
            Reporter: Rahul Challapalli


git.commit.id.abbrev=f476eb5

The below plan indicates that we are reading from the top-level cache
{code}
0: jdbc:drill:zk=10.10.100.190:5181> explain plan for select * from s_1level where dir0
= 'A' and par = 1 and s_nationkey < 2;
+------+------+
| text | json |
+------+------+
| 00-00    Screen
00-01      Project(*=[$0])
00-02        Project(T104¦¦*=[$0])
00-03          SelectionVectorRemover
00-04            Filter(condition=[AND(=($1, 'A'), =($2, 1), <($3, 2))])
00-05              Project(T104¦¦*=[$0], dir0=[$1], par=[$2], s_nationkey=[$3])
00-06                Scan(groupscan=[ParquetGroupScan [entries=[ReadEntryWithPath [path=/drill/testdata/metadata_caching_pp/s_1level/A/0_0_1.parquet]],
selectionRoot=/drill/testdata/metadata_caching_pp/s_1level, numFiles=1, usedMetadataFile=true,
cacheFileRoot=/drill/testdata/metadata_caching_pp/s_1level, columns=[`*`]]])
{code}

I attached the data set used. Let me know if you need anything else.



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