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https://issues.apache.org/jira/browse/CASSANDRA-6933?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13948264#comment-13948264
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Benedict commented on CASSANDRA-6933:
-------------------------------------
Patch available
[here|https://github.com/belliottsmith/cassandra/tree/6933-reduce-cc-comparisons]
> Optimise Read Comparison Costs in collectTimeOrderedData
> --------------------------------------------------------
>
> Key: CASSANDRA-6933
> URL: https://issues.apache.org/jira/browse/CASSANDRA-6933
> Project: Cassandra
> Issue Type: Improvement
> Components: Core
> Reporter: Benedict
> Assignee: Benedict
> Priority: Minor
> Labels: performance
> Fix For: 2.1
>
>
> Introduce a new SearchIterator construct, which can be obtained from a
> ColumnFamily, which permits efficiently iterating a subset of the cells in
> ascending order. Essentially, it saves the previously visited position and
> searches from there, but also tries to avoid searching the whole remaining
> space if possible.
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