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https://issues.apache.org/jira/browse/LUCENE-4871?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Adrien Grand resolved LUCENE-4871.
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Resolution: Fixed
> Sorter API: better compress positions, offsets and payloads in
> SortingDocsAndPositionsEnum
> ------------------------------------------------------------------------------------------
>
> Key: LUCENE-4871
> URL: https://issues.apache.org/jira/browse/LUCENE-4871
> Project: Lucene - Core
> Issue Type: Improvement
> Reporter: Adrien Grand
> Assignee: Adrien Grand
> Priority: Trivial
> Fix For: 4.3
>
> Attachments: LUCENE-4871.patch
>
>
> SortingDocsAndPositionsEnum could easily save memory by using a
> Lucene40TCF-like compression method for positions, offsets and payloads:
> - delta-encode positions and startOffsets (with the previous end offset),
> - store the length of the tokens instead of their end offset (endOffset ==
> startOffset + length),
> - use a single bit to say whether the token has a payload.
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