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https://issues.apache.org/jira/browse/CASSANDRA-2878?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Jonathan Ellis reassigned CASSANDRA-2878:
-----------------------------------------

    Assignee: Jonathan Ellis  (was: Mck SembWever)
    
> Filter out ColumnFamily rows that aren't part of the query (using a 
> IndexClause)
> --------------------------------------------------------------------------------
>
>                 Key: CASSANDRA-2878
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-2878
>             Project: Cassandra
>          Issue Type: New Feature
>          Components: Hadoop
>            Reporter: Mck SembWever
>            Assignee: Jonathan Ellis
>            Priority: Minor
>             Fix For: 1.1
>
>
> Currently, when running a MapReduce job against data in a Cassandra data 
> store, it reads through all the data for a particular ColumnFamily.  This 
> could be optimized to only read through those rows that have to do with the 
> query.
> It's a small change but wanted to put it in Jira so that it didn't fall 
> through the cracks.

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