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From "Fuad Efendi" <f...@efendi.ca>
Subject RE: [ANNOUNCEMENT] Newly released book: Solr 1.4 Enterprise Search Server
Date Fri, 21 Aug 2009 15:42:05 GMT
>actually a hybrid that goes back to DocSet intersections when it's more
efficient

I noticed that too when I played with it, for large query results DocSet
intersections are de-facto standard; but when "faceting" started CNET had
only 400,000 documents :) 
Nowadays even 2-3 seconds response time is bad... may be storing all users'
queries and executing some tasks on background (storing "facets" in a
database similar to heavy warehouse, predicting facet counts depending on
query terms and domain analysis, and etc)?


On Fri, Aug 21, 2009 at 11:25 AM, Fuad Efendi<fuad@efendi.ca> wrote:
> I was joking [off-topic]; "faceting" as a DocSet intersections' replaced
by
> trivial term count calcs which is extremely faster in some (if not all)
use
> cases, including possibly even NON-tokenized (with standard faceting we
can
> use FilterCache)...

One size does not fit all.  The enum method is not outdated or
deprecated, and still works better in some scenarios.  The new
faceting code is actually a hybrid that goes back to DocSet
intersections when it's more efficient.

-Yonik
http://www.lucidimagination.com



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