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Posted to commits@cassandra.apache.org by "Sam Tunnicliffe (JIRA)" <ji...@apache.org> on 2012/09/04 21:05:07 UTC

[jira] [Created] (CASSANDRA-4613) Utilise Secondary Indexes in ColumnFamilyRecordReader

Sam Tunnicliffe created CASSANDRA-4613:
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             Summary: Utilise Secondary Indexes in ColumnFamilyRecordReader
                 Key: CASSANDRA-4613
                 URL: https://issues.apache.org/jira/browse/CASSANDRA-4613
             Project: Cassandra
          Issue Type: New Feature
          Components: Hadoop
            Reporter: Sam Tunnicliffe
            Assignee: Sam Tunnicliffe
             Fix For: 1.1.5


Enable an IndexClause to be passed to ColumnFamilyRecordReader by serializing it and adding to the Hadoop job Configuration. This is a requirement for enabling Filter Pushdown[1] in Hive which can vastly reduce the number of scanned rows that need to be processed in the Hive layer.

[1] https://cwiki.apache.org/Hive/filterpushdowndev.html


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[jira] [Updated] (CASSANDRA-4613) Utilise Secondary Indexes in ColumnFamilyRecordReader

Posted by "Sam Tunnicliffe (JIRA)" <ji...@apache.org>.
     [ https://issues.apache.org/jira/browse/CASSANDRA-4613?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Sam Tunnicliffe updated CASSANDRA-4613:
---------------------------------------

    Attachment: 0001-Utilise-Secondary-Indexes-in-ColumnFamilyRecordReader.txt
    
> Utilise Secondary Indexes in ColumnFamilyRecordReader
> -----------------------------------------------------
>
>                 Key: CASSANDRA-4613
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-4613
>             Project: Cassandra
>          Issue Type: New Feature
>          Components: Hadoop
>            Reporter: Sam Tunnicliffe
>            Assignee: Sam Tunnicliffe
>             Fix For: 1.1.5
>
>         Attachments: 0001-Utilise-Secondary-Indexes-in-ColumnFamilyRecordReader.txt
>
>
> Enable an IndexClause to be passed to ColumnFamilyRecordReader by serializing it and adding to the Hadoop job Configuration. This is a requirement for enabling Filter Pushdown[1] in Hive which can vastly reduce the number of scanned rows that need to be processed in the Hive layer.
> [1] https://cwiki.apache.org/Hive/filterpushdowndev.html

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