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From "Robert Muir (JIRA)" <j...@apache.org>
Subject [jira] Updated: (LUCENE-2687) Remove Priority-Queue size trap in MultiTermQuery.TopTermsBooleanQueryRewrite
Date Mon, 04 Oct 2010 20:04:32 GMT

     [ https://issues.apache.org/jira/browse/LUCENE-2687?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Robert Muir updated LUCENE-2687:
--------------------------------

    Attachment: LUCENE-2687.patch

all tests pass with the fix.

> Remove Priority-Queue size trap in MultiTermQuery.TopTermsBooleanQueryRewrite
> -----------------------------------------------------------------------------
>
>                 Key: LUCENE-2687
>                 URL: https://issues.apache.org/jira/browse/LUCENE-2687
>             Project: Lucene - Java
>          Issue Type: Improvement
>          Components: Search
>    Affects Versions: 3.1, 4.0
>            Reporter: Robert Muir
>            Priority: Minor
>             Fix For: 3.1, 4.0
>
>         Attachments: LUCENE-2687.patch
>
>
> These APIs are new in 3.x, so we can do this with no backwards-compatibility issue:
> Before 3.1, FuzzyQuery had its own internal rewrite method.
> We exposed this in 3.x as TopTermsBooleanQueryRewrite, and then as subclasses for Scoring
and Boost-only variants.
> The problem I have is that the PQ has a default (large) size of Integer.MAX_VALUE...
of course its later limited by
> the value of BooleanQuery's maxClauseCount, but I think this is a trap.
> Instead its better to simply remove these defaults and force the user to provide a default
(reasonable) size.

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