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https://issues.apache.org/jira/browse/CASSANDRA-1125?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13059114#comment-13059114
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Jonathan Ellis commented on CASSANDRA-1125:
-------------------------------------------
Like Mck said, that will have to be split into another ticket, since it
continues to depend on CASSANDRA-1600.
> Filter out ColumnFamily rows that aren't part of the query
> ----------------------------------------------------------
>
> Key: CASSANDRA-1125
> URL: https://issues.apache.org/jira/browse/CASSANDRA-1125
> Project: Cassandra
> Issue Type: New Feature
> Components: Hadoop
> Reporter: Jeremy Hanna
> Assignee: Mck SembWever
> Priority: Minor
> Fix For: 1.0
>
> Attachments: 1125-formatted.txt, CASSANDRA-1125.patch
>
>
> 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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