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From "Marcus Herou" <marcus.he...@tailsweep.com>
Subject Re: Group by in Lucene ?
Date Mon, 05 Nov 2007 12:49:09 GMT
Thanks. They seem to have got real far in the dev cycle on this. Seems like
it will hit the road in Solr 1.3.

However I would really like this feature to be developed for Core Lucene,
how do I start that process?
Develop it yourself you would say :) I'm serious isn't it a really cool and
useful feature ?

Kindly

//Marcus

On 11/5/07, Grant Ingersoll <gsingers@apache.org> wrote:
>
> Solr has an issue outstanding right now that implements something that
> may be close to what you want.  They are calling it Field Collapsing.
> See https://issues.apache.org/jira/browse/SOLR-236
>
> -Grant
>
> On Nov 5, 2007, at 12:57 AM, Marcus Herou wrote:
>
> > Hi.
> >
> > I have a situation where I'm searching amongst some 100K feeds and
> > only want
> > one result per site in return. I have developed a really simple
> > method of
> > grouping which just scrolls through the resultset(hitset) until a
> > maxNum
> > docs of feeds from a set of unique sites is populated. Since I don't
> > wanna
> > reinvent the wheel, I want to know if Lucene has something like this
> > built.
> > I as well will use Solr soon and then my own homecooked recipe will
> > not work
> > so I really need a standard way of doing this.
> >
> > I know Nutch has something like it called depupField which default
> > is set to
> > 2.
> >
> > Anyone?
> >
> >
> > Kindly
> >
> > //Marcus
> >
> > --
> > Marcus Herou Solution Architect & Core Java developer Tailsweep AB
> > +46702561312
> > marcus.herou@tailsweep.com
> > http://www.tailsweep.com
>
> --------------------------
> Grant Ingersoll
> http://lucene.grantingersoll.com
>
> Lucene Boot Camp Training:
> ApacheCon Atlanta, Nov. 12, 2007.  Sign up now!  http://www.apachecon.com
>
> Lucene Helpful Hints:
> http://wiki.apache.org/lucene-java/BasicsOfPerformance
> http://wiki.apache.org/lucene-java/LuceneFAQ
>
>
>
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>


-- 
Marcus Herou Solution Architect & Core Java developer Tailsweep AB
+46702561312
marcus.herou@tailsweep.com
http://www.tailsweep.com

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