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https://issues.apache.org/jira/browse/LUCENE-4752?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13603271#comment-13603271
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Shai Erera commented on LUCENE-4752:
------------------------------------
This looks great. I think that it's fine that we let people override
SegmentMerger ... it's super expert API, no sane person would ever want to do
that, but those that want to, it's good to have the option.
Adrien, perhaps add a SortingSegmentMerger to the sorter package? Or at least
add a test that verifies merges keep things sorted?
> 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
>
>
> 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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