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From "Yonik Seeley" <>
Subject Re: an alternative to optimize?
Date Fri, 01 Dec 2006 21:36:50 GMT
On 12/1/06, Grant Ingersoll <> wrote:
> Are the search statistics the same for the MultiReader?  That is,
> would a search on a MultiReader over several small indexes
> necessarily return the same ranking as a single IndexReader on an
> optimized reader?  Would they return the same actual scores?
> Just curious, I haven't tried MultiReader, but the code seems like it
> should, at least based on my quick glance at it.

You use a MultiReader whenever you open a multi-segment index.
idf factors can change in the presence of deleted documents.

-Yonik Solr, the open-source Lucene search server

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