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From Grant Ingersoll <>
Subject Re: Boost document base on field length
Date Mon, 23 Nov 2009 13:43:03 GMT

On Nov 23, 2009, at 8:01 AM, Tomasz Kępski wrote:

> Hi,
> I would like to boost documents with longer descriptions to move down documents with
0 length description,
> I'm wondering if there is possibility to boost document basing on the field length while
searching or the only way is to store field length as an int in a separate field while indexing?

Override the default Similarity (see the end of the schema.xml file) with your own Similarity
implementation and then in that class override the lengthNorm() method.
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