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https://issues.apache.org/jira/browse/LUCENE-5245?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13778526#comment-13778526
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ASF subversion and git services commented on LUCENE-5245:
---------------------------------------------------------
Commit 1526401 from [~thetaphi] in branch 'dev/branches/branch_4x'
[ https://svn.apache.org/r1526401 ]
Merged revision(s) 1526399 from lucene/dev/trunk:
LUCENE-5245: Fix MultiTermQuery's constant score rewrites to always return a
ConstantScoreQuery to make scoring consistent. Previously it returned an empty
unwrapped BooleanQuery, if no terms were available, which has a different query
norm
> ConstantScoreAutoRewrite rewrites prefix queryies that don't match anything
> before query weight is calculated
> -------------------------------------------------------------------------------------------------------------
>
> Key: LUCENE-5245
> URL: https://issues.apache.org/jira/browse/LUCENE-5245
> Project: Lucene - Core
> Issue Type: Bug
> Affects Versions: 4.4
> Reporter: Nik Everett
> Assignee: Uwe Schindler
> Fix For: 5.0, 4.6
>
> Attachments: LUCENE-5245.patch, LUCENE-5245.patch, LUCENE-5245.patch
>
>
> ConstantScoreAutoRewrite rewrites prefix queryies that don't match anything
> before query weight is calculated. This dramatically changes the resulting
> score which is bad when comparing scores across different Lucene
> indexes/shards/whatever.
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