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From "Commit Tag Bot (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (LUCENE-4752) Merge segments to sort them
Date Wed, 20 Mar 2013 20:43:15 GMT

    [ https://issues.apache.org/jira/browse/LUCENE-4752?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13608166#comment-13608166
] 

Commit Tag Bot commented on LUCENE-4752:
----------------------------------------

[trunk commit] Adrien Grand
http://svn.apache.org/viewvc?view=revision&revision=1459037

LUCENE-4752: Preliminaries:
 - move useful assert*Equals from TestDuelingCodecs to LuceneTestCase,
 - rename sort to wrap in SortingAtomicReader to better suggest that the returned reader is
a view.


                
> Merge segments to sort them
> ---------------------------
>
>                 Key: LUCENE-4752
>                 URL: https://issues.apache.org/jira/browse/LUCENE-4752
>             Project: Lucene - Core
>          Issue Type: New Feature
>          Components: core/index
>            Reporter: David Smiley
>            Assignee: Adrien Grand
>         Attachments: LUCENE-4752.patch, LUCENE-4752.patch, LUCENE-4752.patch, LUCENE-4752.patch,
LUCENE-4752.patch, LUCENE-4752.patch, natural_10M_ingestion.log, sorting_10M_ingestion.log
>
>
> It would be awesome if Lucene could write the documents out in a segment based on a configurable
order.  This of course applies to merging segments to. The benefit is increased locality on
disk of documents that are likely to be accessed together.  This often applies to documents
near each other in time, but also spatially.

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