It appears to me that Amazon is using a 100% minimum match policy. If there
are no matches, they break down the original search terms and give
suggestion search results.
example:
http://www.amazon.com/s/ref=nb_ss_gw?url=search-alias%3Daps&field-keywords=ipod+nano+4th+generation+8gb+blue+calcium
solr/DisMaxRequestHandler?highlight=%28CategorySo
> lrRequestHandler%29%7C%28%28CategorySolrRequestHandler%29%29#head-6c5fe4
> 1d68f3910ed544311435393f5727408e61
>
>
> -Original Message-
> From: Caligula [mailto:[EMAIL PROTECTED]
> Sent: Wednesday, November 19, 2008 11:11 Jo
B +C Match all terms
> 2. q= +A +B -C Match A and B but not C
> 3. q =+A -B +C
> 4. q =
>
>
>
> -Original Message-
> From: Caligula [mailto:[EMAIL PROTECTED]
> Sent: Wednesday, November 19, 2008 11:52 Joe
> To: solr-user@lucene.apache.org
> Subject: R
