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https://issues.apache.org/jira/browse/LUCENE-4892?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Adrien Grand updated LUCENE-4892:
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Attachment: LUCENE-4892.patch
> Create a compressed LiveDocsFormat
> ----------------------------------
>
> Key: LUCENE-4892
> URL: https://issues.apache.org/jira/browse/LUCENE-4892
> Project: Lucene - Core
> Issue Type: New Feature
> Reporter: Adrien Grand
> Priority: Trivial
> Labels: gsoc2014
> Attachments: LUCENE-4892.patch
>
>
> There are lots of use-cases where the number of deleted documents is low.
> This makes live docs very dense and I think it would be interesting to study
> the impact of some bitmap compression techniques on performance (intuitively
> I imagine it will be slower, but since it would make data smaller maybe CPU
> caches could help us so I'd be curious to see how it would behave). This
> format would make a good addition to our CheapBastardCodec.
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