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https://issues.apache.org/jira/browse/ACCUMULO-452?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13225295#comment-13225295
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Billie Rinaldi commented on ACCUMULO-452:
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The core issue this would address is that many users want to be able to scan
over timestamp ranges efficiently. Keith's suggestion is a relatively
straightforward way to support this. It also sounds like it could get complex
if we're not careful, but I think it has potential.
> Generalize locality groups
> --------------------------
>
> Key: ACCUMULO-452
> URL: https://issues.apache.org/jira/browse/ACCUMULO-452
> Project: Accumulo
> Issue Type: New Feature
> Reporter: Keith Turner
> Fix For: 1.5.0
>
>
> Locality groups are a neat feature, but there is no reason to limit
> partitioning to column families. Data could be partitioned based on any
> criteria. For example if a user is interested in querying recent data and
> ageing off old data partitioning locality groups based in timestamp would be
> useful. This could be accomplished by letting users specify a partitioner
> plugin that is used at compaction and scan time. Scans would need an ability
> to pass options to the partitioner.
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