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From "Yonik Seeley" <yo...@apache.org>
Subject Re: How to count categories?
Date Sat, 22 Sep 2007 15:06:30 GMT
On 9/22/07, newbieoflucene <shanghai2k10@hotmail.com> wrote:
> 2-3G index data with 20M records, and each record has 10 or more fields, 3-5
> fields are group fields, which I want to count them for returned results
> after searching. These group fields contains about 1000 or more values. It
> means that I would count 1000 categories for each search.

Have you tried Solr and it's faceting?
It may be fast enough for you (and there are plans in place to make it faster).

Did you want just the top 10 or so for each group field, or do you
need all 1000 for some reason?

-Yonik

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