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https://issues.apache.org/jira/browse/LUCENE-5245?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13778112#comment-13778112
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Uwe Schindler commented on LUCENE-5245:
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Ah sorry. It only applies for the case where no term is found. Yes, in that
case the boost is missing and affects query norm!
Thanks for opening the issue.
> 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
> Attachments: 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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