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https://issues.apache.org/jira/browse/LUCENE-4543?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Robert Muir updated LUCENE-4543:
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Attachment: LUCENE-4543.patch
Here's the patch.
The api bug was introduced when sim was expanded to use norms beside a single
byte: at query-time TFIDFSim is limited to single-byte norms (the code bits are
final), but computeNorm is not final.
I'll commit soon.
> Bring back TFIDFSim.lengthNorm
> ------------------------------
>
> Key: LUCENE-4543
> URL: https://issues.apache.org/jira/browse/LUCENE-4543
> Project: Lucene - Core
> Issue Type: Bug
> Reporter: Robert Muir
> Attachments: LUCENE-4543.patch
>
>
> We removed this before because of LUCENE-2828,
> but the problem there was the delegator (not the lengthNorm method).
> TFIDFSim requires byte[] norms today. So its computeNorm should be final,
> calling lengthNorm() that returns a byte.
> This way there is no possibility for you to do something stupid.
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