Thanks for reply,but I am not know Solr well.
Does Solr base on lucene core or hack lucene core
to achieve the (categories amount)'s function ?
Can I achieve the similar function using
lucene core ?
> From: [EMAIL PROTECTED]> To: java-user@lucene.apache.org> Subject: Re: how to
> statistics categories amount> Date: Sat, 28 Jun 2008 05:36:12 -0400> > > On
> Jun 28, 2008, at 3:57 AM, lutan wrote:> > if I search a keyword likes
> 'computer' in a shopping website.> > the result may contains.> > total:> >
> (1000) products .> > categories:> > pc (500) products .> > notebook (300)
> products .> > server (200) products .> >> > so how do get each categories
> 'amount.> > I try to search many times on onec user search,> > but it is so
> slow> > This is a case where you are probably better off starting with Solr,
> > which supports faceting natively.> > The main trick to making this fast is
> coming up with cached sets of > each of the categories and intersecting each
> of those sets with the > main result set and using the cardinality of the
> intersected sets for > the counts. Again, Solr is what I'd recommend as a
> starting point for > you.> > Erik> > > --------------------------------------
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