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https://issues.apache.org/jira/browse/LUCENE-10412?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Adrien Grand resolved LUCENE-10412.
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Fix Version/s: 9.1
Resolution: Fixed
> Improve handling of MatchNoDocsQuery in rewrite rules
> -----------------------------------------------------
>
> Key: LUCENE-10412
> URL: https://issues.apache.org/jira/browse/LUCENE-10412
> Project: Lucene - Core
> Issue Type: Wish
> Reporter: Adrien Grand
> Priority: Minor
> Fix For: 9.1
>
> Time Spent: 10m
> Remaining Estimate: 0h
>
> Having MatchNoDocsQuery in your query tree usually doesn't make the query
> slower, but by recognizing it in rewrite rules, we could perform rewrites
> which would then sometimes unlock other rewrite rules.
> For instance if you have a boolean query with 2 should clauses where one is a
> MatchAllDocsQuery and the other one is a MatchNoDocsQuery, we would naively
> run it as a disjunction today, while we could rewrite it to a
> MatchAllDocsQuery and leverage its specialized bulk scorer.
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