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Posted to issues@lucene.apache.org by "ASF subversion and git services (Jira)" <ji...@apache.org> on 2021/07/06 19:01:00 UTC
[jira] [Commented] (LUCENE-10020) DocComparator should not skip
docs with the same docID on multiple sorts with search after
[ https://issues.apache.org/jira/browse/LUCENE-10020?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17375948#comment-17375948 ]
ASF subversion and git services commented on LUCENE-10020:
----------------------------------------------------------
Commit 64d9f8c58710eaec8177408b8301a72064581fb1 in lucene's branch refs/heads/main from Mayya Sharipova
[ https://gitbox.apache.org/repos/asf?p=lucene.git;h=64d9f8c ]
LUCENE-10020 DocComparator don't skip docs of same docID (#204)
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.
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 10m
> 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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