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From Ian Lea <>
Subject Re: Do deleted documents affect scores?
Date Thu, 11 Feb 2010 16:35:12 GMT
I'm pretty sure that the answer is no and a quick test on a small
index with/without deleted docs showed no difference in the scores,
using 3.0.  But that was hardly a rigorous test and I don't know
enough about lucene internals and scoring to give a definitive answer.

Shouldn't be too hard for you to verify or disprove: build an index
and throw loads of updates and deletes at it, checking scores as you


On Thu, Feb 11, 2010 at 7:34 AM, Yuval Feinstein <> wrote:
> I want to focus my previous question.
> Say we have two Lucene indexes: A and B.
> Index A contains documents a and b.
> Index B used to contain documents a, b and c,
> But c was deleted.
> All documents share some vocabulary.
> If we search using terms common to documents b and c,
> Can we get a different score for document b in index A and index B?
> Note that both indexes are identical with regard to the non-deleted documents,
> And only differ by the deleted document c.
> Thanks,
> Yuval
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