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https://issues.apache.org/jira/browse/LUCENE-10367?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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LuYunCheng updated LUCENE-10367:
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Attachment: TestCoveringQueryBench.java
> Use WANDScorer in CoveringQuery Can accelerate scorer time
> ----------------------------------------------------------
>
> Key: LUCENE-10367
> URL: https://issues.apache.org/jira/browse/LUCENE-10367
> Project: Lucene - Core
> Issue Type: Improvement
> Components: core/query/scoring, core/search, modules/sandbox
> Reporter: LuYunCheng
> Priority: Major
> Attachments: LUCENE-10367.patch, TestCoveringQueryBench.java
>
>
> When using CoveringQuery In Elasticsearch with terms_set query, it takes too
> much time in CoveringScore and major cost in matain the DisiPriorityQueue:
> subScorers.
> But when minimumNumberMatch is ConstantLongValuesSource, we can use
> WANDScorer to optimize it.
>
> i do a mini benchmark with 1m docs, which code in LUCENE-10367.patch
> TestCoveringQuery.java testRandomBench()
> it shows:
> TEST: WAND elapsed 67ms
> TEST: NOWAND elapsed 163ms
> My testing environment is macBook with Intel Core i7 16GMem.
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