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From: Ian Lea <ian.lea@gmail.com>
Date: Fri, 24 Jun 2011 10:24:49 +0100
Message-ID: <BANLkTi=9U8SCP0_8rQ49c78tE63xSBHk_Q@mail.gmail.com>
Subject: Re: Does {Filter}ing is faster than {Query}ing in Lucene?
To: java-user@lucene.apache.org
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Generalisation is risky, particularly wrt performance, but I'd say
yes, particularly if you can cache and reuse the filter e.g. with
CachingWrapperFilter.  See
http://wiki.apache.org/lucene-java/FilteringOptions.  Not very up to
date but I'd expect the conclusions to stand.


--
Ian.


On Fri, Jun 24, 2011 at 2:20 AM, Denis Bazhenov <dotsid@gmail.com> wrote:
> While reading "Lucene in Action 2nd edition" I came across the descriptio=
n of Filter classes which are could be used for result filtering in Lucene.=
 Lucene has a lot of filters repeating Query classes. For example, NumericR=
angeQuery and NumericRangeFilter.
>
> The book says that NRF does exactly the same as NRQ but without document =
scoring. Does this means that if I do not need scoring or sort documents by=
 document field value I should preferFiltering over Querying from performan=
ce point of view?
>
> ---
> Denis Bazhenov <dotsid@gmail.com>
>
>
>
>
>
>

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