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https://issues.apache.org/jira/browse/LUCENE-2140?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12790084#action_12790084
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Uwe Schindler commented on LUCENE-2140:
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I will commit this patch later today.
> TopTermsScoringBooleanQueryRewrite minscore
> -------------------------------------------
>
> Key: LUCENE-2140
> URL: https://issues.apache.org/jira/browse/LUCENE-2140
> Project: Lucene - Java
> Issue Type: Improvement
> Components: Search
> Affects Versions: Flex Branch
> Reporter: Robert Muir
> Assignee: Uwe Schindler
> Priority: Minor
> Fix For: Flex Branch
>
> Attachments: LUCENE-2140.patch, LUCENE-2140.patch
>
>
> when using the TopTermsScoringBooleanQueryRewrite (LUCENE-2123), it would be
> nice if MultiTermQuery could set an attribute specifying the minimum required
> score once the Priority Queue is filled.
> This way, FilteredTermsEnums could adjust their behavior accordingly based on
> the minimal score needed to actually be a useful term (i.e. not just pass
> thru the pq)
> An example is FuzzyTermsEnum: at some point the bottom of the priority queue
> contains words with edit distance of 1 and enumerating any further terms is
> simply a waste of time.
> This is because terms are compared by score, then termtext. So in this case
> FuzzyTermsEnum could simply seek to the exact match, then end.
> This behavior could be also generalized for all n, for a different impl of
> fuzzyquery where it is only looking in the term dictionary for words within
> edit distance of n' which is the lowest scoring term in the pq (they adjust
> their behavior during enumeration of the terms depending upon this attribute).
> Other FilteredTermsEnums could make use of this minimal score in their own
> way, to drive the most efficient behavior so that they do not waste time
> enumerating useless terms.
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