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From "Steven Phillips (JIRA)" <j...@apache.org>
Subject [jira] [Created] (DRILL-3333) Add support for auto-partitioning in parquet writer
Date Mon, 22 Jun 2015 17:33:00 GMT
Steven Phillips created DRILL-3333:
--------------------------------------

             Summary: Add support for auto-partitioning in parquet writer
                 Key: DRILL-3333
                 URL: https://issues.apache.org/jira/browse/DRILL-3333
             Project: Apache Drill
          Issue Type: Bug
            Reporter: Steven Phillips


When a table is created with a partition by clause, the parquet writer will create separate
files for the different partition values. The data will first be sorted by the partition keys,
and the parquet writer will create new file when it encounters a new value for the partition
columns.

When data is queried against the data that was created this way, partition pruning will work
if the filter contains a partition column. And unlike directory based partitioning, no view
is required, nor is it necessary to reference the dir* column names.



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