[ 
https://issues.apache.org/jira/browse/LUCENE-8311?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16881203#comment-16881203
 ] 

Michael McCandless commented on LUCENE-8311:
--------------------------------------------

+1 to merge ... that is a good tradeoff!  Astronomical speedups for 
{{PhraseQuery}} and some small slowdowns in others.  It's important that all of 
our common queries properly handle impacts.

> Leverage impacts for phrase queries
> -----------------------------------
>
>                 Key: LUCENE-8311
>                 URL: https://issues.apache.org/jira/browse/LUCENE-8311
>             Project: Lucene - Core
>          Issue Type: Improvement
>            Reporter: Adrien Grand
>            Priority: Minor
>         Attachments: LUCENE-8311.patch
>
>          Time Spent: 10m
>  Remaining Estimate: 0h
>
> Now that we expose raw impacts, we could leverage them for phrase queries.
> For instance for exact phrases, we could take the minimum term frequency for 
> each unique norm value in order to get upper bounds of the score for the 
> phrase.



--
This message was sent by Atlassian JIRA
(v7.6.3#76005)

---------------------------------------------------------------------
To unsubscribe, e-mail: dev-unsubscr...@lucene.apache.org
For additional commands, e-mail: dev-h...@lucene.apache.org

Reply via email to