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https://issues.apache.org/jira/browse/LUCENE-8857?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16876965#comment-16876965
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Atri Sharma commented on LUCENE-8857:
-------------------------------------

Since this is a breaking API change, is there a way we can highlight this to 
existing users in a "louder" manner, or is MIGRATE.txt entry enough?

> Refactor TopDocs#Merge To Take In Custom Tie Breakers
> -----------------------------------------------------
>
>                 Key: LUCENE-8857
>                 URL: https://issues.apache.org/jira/browse/LUCENE-8857
>             Project: Lucene - Core
>          Issue Type: Improvement
>            Reporter: Atri Sharma
>            Priority: Major
>             Fix For: master (9.0)
>
>         Attachments: LUCENE-8857-compile-fix.patch, LUCENE-8857.patch, 
> LUCENE-8857.patch, LUCENE-8857.patch, LUCENE-8857.patch, LUCENE-8857.patch
>
>          Time Spent: 4.5h
>  Remaining Estimate: 0h
>
> In LUCENE-8829, the idea of having lambdas passed in to the API to allow 
> finer control over the process was discussed.
> This JIRA tracks adding a parameter to the API which allows passing in 
> lambdas to define custom tie breakers, thus allowing users to do custom 
> algorithms when required.
> CC: [~jpountz]  [~simonw] 



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