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Date: Wed, 11 May 2011 22:21:48 +0000 (UTC)
From: "Uwe Schindler (JIRA)" <jira@apache.org>
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Subject: [jira] [Commented] (LUCENE-3084) MergePolicy.OneMerge.segments
 should be List<SegmentInfo> not SegmentInfos
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    [ https://issues.apache.org/jira/browse/LUCENE-3084?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13032127#comment-13032127 ] 

Uwe Schindler commented on LUCENE-3084:
---------------------------------------

{quote}
bq. Merges are ordered

Hmm.. Why should they be?
{quote}

See also LUCENE-1076, in trunk we may remove this, but 3.x - not sure. There is currently nothing in Lucene that guarantees that docIDs of MultiReaders are not reoredered during merges, but lots of people expect/rely on this.

> MergePolicy.OneMerge.segments should be List<SegmentInfo> not SegmentInfos
> --------------------------------------------------------------------------
>
>                 Key: LUCENE-3084
>                 URL: https://issues.apache.org/jira/browse/LUCENE-3084
>             Project: Lucene - Java
>          Issue Type: Improvement
>            Reporter: Michael McCandless
>            Assignee: Michael McCandless
>            Priority: Minor
>             Fix For: 3.2, 4.0
>
>         Attachments: LUCENE-3084-trunk-only.patch, LUCENE-3084-trunk-only.patch, LUCENE-3084.patch
>
>
> SegmentInfos carries a bunch of fields beyond the list of SI, but for merging purposes these fields are unused.
> We should cutover to List<SI> instead.

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