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https://issues.apache.org/jira/browse/LUCENE-4235?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Uwe Schindler updated LUCENE-4235:
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    Attachment: LUCENE-4235.patch

I missed to disable the check in the test. Now it's ready.
                
> Remove enforcing of Filter Rewrite for NRQ queries
> --------------------------------------------------
>
>                 Key: LUCENE-4235
>                 URL: https://issues.apache.org/jira/browse/LUCENE-4235
>             Project: Lucene - Java
>          Issue Type: Improvement
>          Components: core/search
>            Reporter: Uwe Schindler
>            Assignee: Uwe Schindler
>             Fix For: 4.0, 5.0
>
>         Attachments: LUCENE-4235.patch, LUCENE-4235.patch
>
>
> Back in Lucene 2.9, I hardcoded NRQ to always use filter rewrite based on the 
> precisionStep. This is bogus and contradicts our autodetection (which may 
> need some overhaul now in Lucene 4.0).
> If a query rewrites to only one term, using filter rewrite is stupid and 
> slows down a lot, it can do a simple CSQ(TermQuery()) which is incredibly 
> fast.
> This issue will remove the line from the CTOR.

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