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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

    • Improvement
    • Status: Open
    • Minor
    • Resolution: Unresolved
    • 1.8.0
    • None
    • java
    • 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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          is related to

          Improvement - An improvement or enhancement to an existing feature or task. AVRO-1192 trevni should support RLE encoding based on selectivity

          • Minor - Minor loss of function, or other problem where easy workaround is present.
          • Open

          Improvement - An improvement or enhancement to an existing feature or task. AVRO-1193 trevni should support bitmap index based on selectivity

          • Minor - Minor loss of function, or other problem where easy workaround is present.
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          Improvement - An improvement or enhancement to an existing feature or task. AVRO-1194 trevni should support delta encoding based on selectivity and data type

          • Minor - Minor loss of function, or other problem where easy workaround is present.
          • Open

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              Unassigned Unassigned
              gemini5201314 alex gemini
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                Created:
                Updated: