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https://issues.apache.org/jira/browse/LUCENE-3918?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13570612#comment-13570612
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Adrien Grand commented on LUCENE-3918:
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I didn't know about IndexSorter. It would be nice to have a codec wrapper that
would override all *Writer/Consumer.merge methods to make the merged segments
sorted. This could help make the I/O cache work happily with stored fields/term
vectors and early terminate queries after having visited min(maxBufferedDocs,
numHits) documents without requiring the index to be read-only nor to have to
store a doc ID mapping in memory (but at a higher indexing/merging cost)?
> Port index sorter to trunk APIs
> -------------------------------
>
> Key: LUCENE-3918
> URL: https://issues.apache.org/jira/browse/LUCENE-3918
> Project: Lucene - Core
> Issue Type: Task
> Components: modules/other
> Affects Versions: 4.0-ALPHA
> Reporter: Robert Muir
> Fix For: 4.2, 5.0
>
> Attachments: LUCENE-3918.patch
>
>
> LUCENE-2482 added an IndexSorter to 3.x, but we need to port this
> functionality to 4.0 apis.
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