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https://issues.apache.org/jira/browse/LUCENE-10480?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17565375#comment-17565375
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Adrien Grand commented on LUCENE-10480:
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+1 to explore this in a separate issue.
bq. Do you think this slowdown to AndHighOrMedMed may be considered as blocker
to 9.3 release?
I wouldn't say blocker, but maybe we could give us time indeed by only using
this new scorer on top-level disjunctions for now so that we have more time to
figure out whether we should stick to BMW or switch to BMM for inner
disjunctions.
> Specialize 2-clauses disjunctions
> ---------------------------------
>
> Key: LUCENE-10480
> URL: https://issues.apache.org/jira/browse/LUCENE-10480
> Project: Lucene - Core
> Issue Type: Task
> Reporter: Adrien Grand
> Priority: Minor
> Time Spent: 7h 20m
> Remaining Estimate: 0h
>
> WANDScorer is nice, but it also has lots of overhead to maintain its
> invariants: one linked list for the current candidates, one priority queue of
> scorers that are behind, another one for scorers that are ahead. All this
> could be simplified in the 2-clauses case, which feels worth specializing for
> as it's very common that end users enter queries that only have two terms?
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