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Posted to dev@avro.apache.org by "Thiruvalluvan M. G. (JIRA)" <ji...@apache.org> on 2018/12/30 04:18:01 UTC

[jira] [Updated] (AVRO-1193) trevni should support bitmap index based on selectivity

     [ https://issues.apache.org/jira/browse/AVRO-1193?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Thiruvalluvan M. G. updated AVRO-1193:
--------------------------------------
    Component/s: java

> trevni should support bitmap index based on selectivity
> -------------------------------------------------------
>
>                 Key: AVRO-1193
>                 URL: https://issues.apache.org/jira/browse/AVRO-1193
>             Project: Apache Avro
>          Issue Type: Improvement
>          Components: java
>    Affects Versions: 1.8.0
>            Reporter: alex gemini
>            Priority: Minor
>              Labels: compression, performance
>
> it would be nice if trevni support bitmap index encoding. columnar format should first sort the columnar order based on selectivity .for higher selectivity column trenvi should support bitmap encoding .more information will be found in paper "C-Store: A Column-oriented DBMS" section 3.1 :Encoding Schemes,type 2.



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