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https://issues.apache.org/jira/browse/LUCENE-10020?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17376130#comment-17376130
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ASF subversion and git services commented on LUCENE-10020:
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Commit bdef1be78fb46ab7bf1924386daab2a7db1a4316 in lucene-solr's branch
refs/heads/branch_8x from Mayya Sharipova
[ https://gitbox.apache.org/repos/asf?p=lucene-solr.git;h=bdef1be ]
LUCENE-10020 DocComparator don't skip docs of same docID (#2530)
DocComparator should not skip docs with the same docID on multiple
sorts with search after.
Because of the optimization introduced in LUCENE-9449, currently when
searching with sort on [_doc, other fields] with search after,
DocComparator can efficiently skip all docs before and including
the provided [search after docID]. This is a desirable behaviour
in a single index search. But in a distributed search, where multiple
indices have docs with the same docID, and when searching on
[_doc, other fields], the sort optimization should NOT skip
documents with the same docIDs.
This PR fixes this.
Backport for https://github.com/apache/lucene/pull/204
Relates to LUCENE-9449
> DocComparator should not skip docs with the same docID on multiple sorts with
> search after
> ------------------------------------------------------------------------------------------
>
> Key: LUCENE-10020
> URL: https://issues.apache.org/jira/browse/LUCENE-10020
> Project: Lucene - Core
> Issue Type: Bug
> Reporter: Mayya Sharipova
> Priority: Minor
> Time Spent: 1h 40m
> Remaining Estimate: 0h
>
> Because of the optimization introduced in
> [LUCENE-9449|https://issues.apache.org/jira/browse/LUCENE-9449], when
> searching with sort on [_doc, other fields] with search after,
> DocComparator can efficiently skip all docs before and including the provided
> [search after docID].
> This is a desirable behaviour in a single index search. But in a distributed
> search, where multiple indices have docs with the same docID, and when
> searching on [_doc, other fields], the sort optimization should not skip
> documents with the same docIDs.
> Relates to LUCENE-9449
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