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From Gérard Dupont <ger.dup...@gmail.com>
Subject Re: A very complex search problem.
Date Wed, 02 Sep 2009 09:54:09 GMT
Hi,

The big OR query should be the easiest way and it may work up to ~1000 users
(ie you can specific by default 1024 boolean clause so up to N users in the
OR where N = 1024 - (boolean clause in your query)). You can increase this
limit of boolean clauses in the configuration but I guess too much is
painful. I know that colleagues of me worked on Lucene with up to ~500
boolean wuery ith huge response time constraints and many GB indexes and it
was working fine. I guess SolR will work in the same way.

On Wed, Sep 2, 2009 at 11:47, rajan chandi <chandi.rajan@gmail.com> wrote:

> Hi All,
>
> We are dealing with a very complex problem of person specific search.
>
> We're building a social network where people will post stuff and other
> users
> should be able to see the content only from their contacts.
>
> e.g. There are 10,000 users in the system and there are only 150 users in
> my
> network.
> I should be search across only 150 users' content.
>
> Is there an easy way to approach this problem?
>
> We've come-up with different approaches:-
>
>
>   - Storing the relationship in each document.
>   - A huge ORed query with all the IDs of the people that needs to be
>   searched.
>   - Creating a query and filtering the results based on the list of
>   contacts.
>
> None of these approach sounds to be plausible.
>
> We already have gone through recently released book on Solr 1.4 Enterprise
> Search. The book also doesn't seem to have any pointers.
>
> Any good approach/pointers will help.
>
> Thanks and regards
> Rajan Chandi
>



-- 
Gérard Dupont
Information Processing Control and Cognition (IPCC) - EADS DS
http://weblab-project.org

Document & Learning team - LITIS Laboratory

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