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From "Charles Pritchard (JIRA)" <j...@apache.org>
Subject [jira] [Created] (ORC-45) Support ZSTD Dictionary Compression
Date Mon, 04 Apr 2016 19:45:25 GMT
Charles Pritchard created ORC-45:
------------------------------------

             Summary: Support ZSTD Dictionary Compression 
                 Key: ORC-45
                 URL: https://issues.apache.org/jira/browse/ORC-45
             Project: Orc
          Issue Type: Bug
            Reporter: Charles Pritchard


ZSTD provides superior processing performance in comparison to deflate/gzip. Dictionary compression
provides yet another opportunity for improvement, when applied to columns.

Implementing dictionary compression per-column may enable other code to be written, such as
per-column encryption, which while mentioned in ORC-14, would be taking a different form.





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