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Posted to commits@cassandra.apache.org by "Benedict (JIRA)" <ji...@apache.org> on 2014/04/10 15:03:17 UTC
[jira] [Reopened] (CASSANDRA-6933) Optimise Read Comparison Costs
in collectTimeOrderedData
[ https://issues.apache.org/jira/browse/CASSANDRA-6933?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Benedict reopened CASSANDRA-6933:
---------------------------------
> 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: 3.0
>
> Attachments: 6933-v3.txt, 6933-v4.txt, 6933-v5.txt, 6933.v5fix.txt
>
>
> 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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