See conference video - http://www.lucidimagination.com/devzone/events/conferences/ApacheLuceneEurocon2011 Solr does great filtering and faceting, but often your documents are not flat at all and have some kind of structure i.e. items or sub-documents. Ignoring their identity leads to poor navigation experience. Lucene can model such sub-documents via its intrinsic abilities: TermPositions and SpanQueries. Unfortunately Solr doesn't support them for filtering, faceting and sorting. We easily extend Solr for the ultimate sub-documents navigation experience that includes filtering, faceting, and sorting. More details are http://blog.griddynamics.com/search/label/Solr

1. Navigating Sub-documents at
FanMart.com
Mikhail
Khludnev

3. Found: 8 models
VT-3050 $55
Color
VT-2052
$72
Size
VT-6074 $83

4. VT-3050 $55
High-performance low latency table fan
Items available
#1597 #1599 #1566

12. Color
Size

15. S (1)
(S, L, S, M) L (1)
M (1)
(Red, Red, Red (1)
White,Blue) White (1)
Blue (1)

19. search sub-documents
count facets for them
ER-model

20. Credits
http://www.flickr.com/photos/lanapalmer/449052921/
http://www.flickr.com/photos/toastkid/5585857015/
http://www.flickr.com/photos/ell-r-brown/4252159216
http://www.flickr.com/photos/melancon/430048836/
http://lenrapoport.hubpages.com/hub/Secret-Codes-
Will-Save-You-Money-At-Costco
http://db.grussell.org/section005.html
http://tinymodeler.com
http://www.clker.com
http://blog.griddynamics.com/search/label/Solr
Mikhail Khludnev