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  1. Apache Avro
  2. AVRO-1195

trevni should support dictionary encoding based on selectivity and data type

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    Details

    • Type: Improvement
    • Status: Open
    • Priority: Minor
    • Resolution: Unresolved
    • Affects Version/s: 1.8.0
    • Fix Version/s: None
    • Component/s: java
    • Tags:
      compression

      Description

      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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              • Assignee:
                Unassigned
                Reporter:
                gemini5201314 alex gemini
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                Dates

                • Created:
                  Updated: