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From "alex gemini (JIRA)" <j...@apache.org>
Subject [jira] [Created] (AVRO-1195) trevni should support dictionary encoding based on selectivity and data type
Date Tue, 06 Nov 2012 13:58:12 GMT
alex gemini created AVRO-1195:
---------------------------------

             Summary: trevni should support dictionary encoding based on selectivity and data
type
                 Key: AVRO-1195
                 URL: https://issues.apache.org/jira/browse/AVRO-1195
             Project: Avro
          Issue Type: Improvement
    Affects Versions: 1.8.0
            Reporter: alex gemini
            Priority: Minor


it would be nice if trevni support dictionary encoding. columnar format should first sort
the columnar order based on selectivity .for lower selectivity column such as email or address
trenvi should support dictionary encoding .more information will be found in paper "C-Store:
A Column-oriented DBMS" section 3.1 :Encoding Schemes,type 4.

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