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Posted to dev@avro.apache.org by "alex gemini (JIRA)" <ji...@apache.org> on 2012/11/06 14:58:12 UTC
[jira] [Created] (AVRO-1195) trevni should support dictionary
encoding based on selectivity and data type
alex gemini created AVRO-1195:
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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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