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https://issues.apache.org/jira/browse/LUCENE-4096?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Robert Muir resolved LUCENE-4096.
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       Resolution: Fixed
    Fix Version/s: 5.0
    
> impossible to CheckIndex if you use norms other than byte[]
> -----------------------------------------------------------
>
>                 Key: LUCENE-4096
>                 URL: https://issues.apache.org/jira/browse/LUCENE-4096
>             Project: Lucene - Java
>          Issue Type: Task
>          Components: core/index
>    Affects Versions: 4.0
>            Reporter: Robert Muir
>             Fix For: 4.0, 5.0
>
>         Attachments: LUCENE-4096.patch
>
>
> I noticed TestCustomNorms had the checkIndexOnClose disabled, but
> I think this is a real problem.
> If someone wants to use e.g. float[] norms, they should be able to run
> CheckIndex.
> CheckIndex is fine with validating any norm type, the problem is that it 
> sometimes creates an IndexSearcher and fires off TermQueries for some 
> calculations. This causes it to (wrongly) fail, because DefaultSimilarity 
> expects single byte norms.
> I don't think CheckIndex needs to use TermQuery here, we can do this 
> differently so it doesnt use IndexSearcher or TermQuery but just the postings 
> apis.

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