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Posted to issues@lucene.apache.org by "Lu Xugang (Jira)" <ji...@apache.org> on 2022/02/28 10:32:00 UTC

[jira] [Commented] (LUCENE-10442) When indexQuery or/and dvQuery be a MatchAllDocsQuery then IndexOrDocValuesQuery should be rewrite to MatchAllDocsQuery

    [ https://issues.apache.org/jira/browse/LUCENE-10442?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17498818#comment-17498818 ] 

Lu Xugang commented on LUCENE-10442:
------------------------------------

Further more: can we  leverage Weigh#count()  to get a ConstantScoreScorer while count == reader.maxDoc() in implementation of Weight#scorerSupplier(LeafReaderContext context)?

If indexWeight.count(LeafReaderContext) or dvWeight.count(LeafReaderContext) equals reader.maxDoc() means match everything in this segment? 

> When indexQuery or/and dvQuery be a MatchAllDocsQuery  then IndexOrDocValuesQuery should be rewrite to MatchAllDocsQuery 
> -------------------------------------------------------------------------------------------------------------------------
>
>                 Key: LUCENE-10442
>                 URL: https://issues.apache.org/jira/browse/LUCENE-10442
>             Project: Lucene - Core
>          Issue Type: Improvement
>            Reporter: Lu Xugang
>            Priority: Trivial
>             Fix For: 9.1
>
>          Time Spent: 10m
>  Remaining Estimate: 0h
>
> IndexOrDocValuesQuery is typically useful for range queries, When indexQuery was rewrite to MatchAllDocsQuery and if IndexOrDocValuesQuery not be a lead iterator , it most likely that dvQuery will supply the Scorer not indexQuery.



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