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Posted to issues@lucene.apache.org by "Mayya Sharipova (Jira)" <ji...@apache.org> on 2021/07/07 18:40:00 UTC

[jira] [Resolved] (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:all-tabpanel ]

Mayya Sharipova resolved LUCENE-10020.
--------------------------------------
    Fix Version/s: 8.10
       Resolution: Fixed

> 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
>             Fix For: 8.10
>
>          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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