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Posted to dev@gora.apache.org by "Lewis John McGibbney (JIRA)" <ji...@apache.org> on 2013/08/03 06:29:49 UTC

[jira] [Updated] (GORA-267) Cassandra composite primary key support

     [ https://issues.apache.org/jira/browse/GORA-267?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Lewis John McGibbney updated GORA-267:
--------------------------------------

    Fix Version/s: 0.4
    
> Cassandra composite primary key support
> ---------------------------------------
>
>                 Key: GORA-267
>                 URL: https://issues.apache.org/jira/browse/GORA-267
>             Project: Apache Gora
>          Issue Type: Improvement
>          Components: gora-cassandra
>            Reporter: c.zirpins@seeburger.de
>              Labels: features
>             Fix For: 0.4
>
>
> The extension allows to define primary keys that are represented by avro classes. A mapping specifies how fields of the key class are mapped to the components of composite partition keys and composite column names. This gives users more control with respect to the distribution of data into Cassandra database structures. It is now possible to store data in wide rows with custom indexes that allow for fast range scans on a single node. Also there is no more need for an order-preserving partitioner that is likely to compromise data distribution in the Cassandra cluster.

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