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From "Robert Muir (JIRA)" <j...@apache.org>
Subject [jira] Created: (LUCENE-2687) Remove Priority-Queue size trap in MultiTermQuery.TopTermsBooleanQueryRewrite
Date Mon, 04 Oct 2010 20:02:32 GMT
Remove Priority-Queue size trap in MultiTermQuery.TopTermsBooleanQueryRewrite
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                 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


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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