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https://issues.apache.org/jira/browse/LUCENE-10425?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17496766#comment-17496766
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Adrien Grand commented on LUCENE-10425:
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I'm not sure #687 actually helps compared to what we are already doing.

I like the idea of being able to count the number of hits of conjunctions 
efficiently thanks to index sorting but I think we'll need to expose this using 
a better API.

> count aggregation optimization inside one segment in log scenario
> -----------------------------------------------------------------
>
>                 Key: LUCENE-10425
>                 URL: https://issues.apache.org/jira/browse/LUCENE-10425
>             Project: Lucene - Core
>          Issue Type: New Feature
>          Components: core/search
>            Reporter: jianping weng
>            Priority: Major
>          Time Spent: 0.5h
>  Remaining Estimate: 0h
>
> In log scenario, we usually want to know the doc count of documents between 
> every time intervals. One possible optimized method is to sort the docuemt in 
> ascend order according to @timestamp field in one segment. then we can use    
> this pr [https://github.com/apache/lucene/pull/687] to find out the min/max 
> docId in on time interval.
> If there is no other filter query, the doc count of one time interval is (max 
> docId- min docId +1)
> if there is only one another term filter query, we can use this pr 
> [https://github.com/apache/lucene/pull/688 
> |https://github.com/apache/lucene/pull/688]to get the diff value of index, 
> when we call advance(minId) and advance(maxId), the diff value is also the 
> doc count of one time interval
>  



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