Faceted Search is known as a possibility for dynamic clustering of items or search results into categories that let users drill into search results (or even skip searching entirely) by any value in any field''
[1] describes multi-queries that can make the searches faster and optimize common parts between queries and further suggests to use '''multi-queries''' to allow sending a number of queries in one batch to create faceted search. For relevant research see [2]
[1] http://sphinxsearch.com/blog/2010/04/05/facets-multi-queries-and-searching-3x-faster/
[2] http://www.mediawiki.org/w/index.php?title=Extension_talk:SphinxSearch#Faceted Search
Version: unspecified
Severity: enhancement