[jira] [Commented] (SOLR-14765) optimize DocList creation by skipping sort for sort-irrelevant cases

["Mikhail Khludnev (Jira)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/SOLR-14765?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17645796#comment-17645796 ] 

Mikhail Khludnev commented on SOLR-14765:
-----------------------------------------

Pardon. May it be related to SOLR-16585 when {{start=1}} ? 

> optimize DocList creation by skipping sort for sort-irrelevant cases
> --------------------------------------------------------------------
>
>                 Key: SOLR-14765
>                 URL: https://issues.apache.org/jira/browse/SOLR-14765
>             Project: Solr
>          Issue Type: Improvement
>    Affects Versions: 9.0
>            Reporter: Michael Gibney
>            Assignee: Michael Gibney
>            Priority: Major
>             Fix For: 9.1
>
>          Time Spent: 14h
>  Remaining Estimate: 0h
>
> When {{rows=0}}, and for {{MatchAllDocsQuery}} and {{ConstantScoreQuery}} (and possibly others?), it is possible for {{SolrIndexSearcher.getDocListC(QueryResult, QueryCommand)}} to create a DocList directly from {{filterCache}} DocSets -- similar to {{useFilterForSortedQuery}}, but without actually sorting. 
> This results in significant benefits for high-recall domains, including the common (and commonly-cached) use-case of {{q=\*:*}} and {{fq}}, facets, etc.



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