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From "Robert Muir (JIRA)" <j...@apache.org>
Subject [jira] [Created] (LUCENE-3401) need to ensure that sims that use collection-level stats (e.g. sumTotalTermFreq) handle non-existent field
Date Thu, 25 Aug 2011 02:42:29 GMT
need to ensure that sims that use collection-level stats (e.g. sumTotalTermFreq) handle non-existent
field
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                 Key: LUCENE-3401
                 URL: https://issues.apache.org/jira/browse/LUCENE-3401
             Project: Lucene - Java
          Issue Type: Bug
    Affects Versions: flexscoring branch
            Reporter: Robert Muir
         Attachments: LUCENE-3401.patch

Because of things like queryNorm, unfortunately similarities have to handle the case where
they are asked to computeStats() for a term, where the field does not exist at all.
(Note they will never have to actually score anything, but unless we break how queryNorm works
for TFIDF, we have to deal with this case).

I noticed this while doing some benchmarking, so i created a test to test some cases like
this across all the sims.

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