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From "Michael McCandless (JIRA)" <j...@apache.org>
Subject [jira] Assigned: (LUCENE-2686) DisjunctionSumScorer should not call .score on sub scorers until consumer calls .score
Date Wed, 06 Oct 2010 10:28:30 GMT

     [ https://issues.apache.org/jira/browse/LUCENE-2686?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Michael McCandless reassigned LUCENE-2686:
------------------------------------------

    Assignee: Michael McCandless

> DisjunctionSumScorer should not call .score on sub scorers until consumer calls .score
> --------------------------------------------------------------------------------------
>
>                 Key: LUCENE-2686
>                 URL: https://issues.apache.org/jira/browse/LUCENE-2686
>             Project: Lucene - Java
>          Issue Type: Bug
>          Components: Search
>            Reporter: Michael McCandless
>            Assignee: Michael McCandless
>             Fix For: 3.1, 4.0
>
>         Attachments: Test2LUCENE2590.java
>
>
> Spinoff from java-user thread "question about Scorer.freq()" from Koji...
> BooleanScorer2 uses DisjunctionSumScorer to score only-SHOULD-clause boolean queries.
> But, this scorer does too much work for collectors that never call .score, because it
scores while it's matching.  It should only call .score on the subs when the caller calls
its .score.
> This also has the side effect of messing up advanced collectors that gather the freq()
of the subs (using LUCENE-2590).

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