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From Erick Erickson <>
Subject Re: Flexible search field analyser/tokenizer configuration
Date Sun, 05 Oct 2014 15:38:27 GMT

You're still missing the boat a bit here with your boosts. Boosts
applied to "fq" clauses are _completely and totally useless_. Don't
even bother putting them, the just confuse me ;).

fq clauses are simple binary decisions and do NOT contribute to
scoring in any way at all. Way under the covers, the query is
evaluated and ancoded in a bitset over the internal Lucene doc IDs.
Each doc that matches results in a 1 in the appropriate place.... This
bitset is what goes in the filterCache. Which, incidentally, is why
the size of each entry is (some overhead) + maxDoc/8.....

Anyway, the entire result of the calculations is just this bit, so
there's no room for scoring information. Now, putting boosts in the fq
clause doesn't change the results, but if you're expecting them to
have any effect on the query you'll be disappointed.


On Sat, Oct 4, 2014 at 9:17 AM, PeterKerk <> wrote:
> Thanks, removing the fq parameters helped :)
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