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Posted to dev@drill.apache.org by "Damien Profeta (JIRA)" <ji...@apache.org> on 2017/09/16 01:06:00 UTC

[jira] [Created] (DRILL-5797) Use more often the new parquet reader

Damien Profeta created DRILL-5797:
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             Summary: Use more often the new parquet reader
                 Key: DRILL-5797
                 URL: https://issues.apache.org/jira/browse/DRILL-5797
             Project: Apache Drill
          Issue Type: Improvement
          Components: Storage - Parquet
            Reporter: Damien Profeta


The choice of using the regular parquet reader of the optimized one is based of what type of columns is in the file. But the columns that are read by the query doesn't matter. We can increase a little bit the cases where the optimized reader is used by checking is the projected column are simple or not.
This is an optimization waiting for the fast parquet reader to handle complex structure.



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