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https://issues.apache.org/jira/browse/LUCENE-6711?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14650500#comment-14650500
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Upayavira commented on LUCENE-6711:
-----------------------------------

I've often wondered the same sort of thing.

Now, given that this will likely change the score for every single query anyone 
does on any Lucene based search, would it be possible to make this 
configurable, so that people can choose which one they want? More particularly, 
to choose the point at which their scoring will change?

> Instead of docCount(), maxDoc() is used for numberOfDocuments in 
> SimilarityBase
> -------------------------------------------------------------------------------
>
>                 Key: LUCENE-6711
>                 URL: https://issues.apache.org/jira/browse/LUCENE-6711
>             Project: Lucene - Core
>          Issue Type: Bug
>          Components: core/search
>    Affects Versions: 5.2.1
>            Reporter: Ahmet Arslan
>            Priority: Minor
>             Fix For: 5.3
>
>         Attachments: LUCENE-6711.patch
>
>
> {{SimilarityBase.java}} has the following line :
> {code}
>  long numberOfDocuments = collectionStats.maxDoc();
> {code}
> It seems like {{collectionStats.docCount()}}, which returns the total number 
> of documents that have at least one term for this field, is more appropriate 
> statistics here. 



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