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From Chris Hostetter <>
Subject Re: Facets that match exactly a filter query..
Date Sat, 14 Jul 2007 00:15:13 GMT

: The issue here is that, even though I've already clicked on the
: "General Sport Eyewear" facet, I still get that as an option in the
: results. It seems that SOLR might be able to exclude this from the
: facets on the basis of an exact match to the filter query I'm
: running.. but I'm not sure.

Within a given facet.field, ther is no easy way for the faceting code to
know that you've already filtered a particular constraint for that field
-- the set returned for that constraint might be the same as the main
result set -- but that may be true for other reasosn as well 9it might
just be a coincidence)

that said: we could make an option to have Solr supress any constraints in
that situation -- this wouldn't technically be solving the "don't give me
counts for constraints on a facet.field if i'm already filtering on those
constraints" problem, but it would solve the related "don't show me counts
for constraints where the constraint does not alter the result set"

in your situation it would mean that "General Sport Eyewear" would no
longer be listed -- but neither woud "Eyewear" or "Sport" (since in
the context of the current result set which is already narrowed to the
subset of "General Sport Eyewear" they would not further narrow the set)
...but i suspect that's the behavior you really want anyway.

: Is this something I will need to handle in my perl, or is it
: something that can be worked out via SOLR? Obviously, we don't want a

for now it's something you'd need to do in on the client side ...
definitely nothing in Solr to solve this for you at the moment

(note: you don't have to actually look at the filters that are applied,
you can just compare the counts and ignore anything where hte count is hte
same as the total number of results)


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