Hi

were you successful in trying SOLR -1604  to allow wild card queries in
phrases ?

Also does this plugin allow us to use proximity with wild card
*          "solr mail*"~10 *

If this the right approach to go ahead to support these functionalities?

thanks
Mark





On Wed, Aug 4, 2010 at 2:24 PM, Frederico Azeiteiro <
frederico.azeite...@cision.com> wrote:

> Thanks for you ideia.
>
> At this point I'm logging each query time. My ideia is to divide my
> queries into "normal queries" and "heavy queries". I have some heavy
> queries with 1 minute or 2mintes to get results. But they have for
> instance (*word1* AND *word2* AND word3*). I guess that this will be
> always slower (could be a little faster with
> "ReversedWildcardFilterFactory") but they never be ready in a few
> seconds. For now, I just increased the timeout for those :) (using
> solrnet).
>
> My priority at the moment is the queries phrases like "word1* word2*
> word3". After this is working, I'll try to optimize the "heavy queries"
>
> Frederico
>
>
> -----Original Message-----
> From: Jonathan Rochkind [mailto:rochk...@jhu.edu]
> Sent: quarta-feira, 4 de Agosto de 2010 01:41
> To: solr-user@lucene.apache.org
> Subject: Re: wildcard and proximity searches
>
> Frederico Azeiteiro wrote:
> >
> >>> But it is unusual to use both leading and trailing * operator. Why
> are
> >>>
> > you doing this?
> >
> > Yes I know, but I have a few queries that need this. I'll try the
> > "ReversedWildcardFilterFactory".
> >
> >
> >
>
> ReverseWildcardFilter will help leading wildcard, but will not help
> trying to use a query with BOTH leading and trailing wildcard. it'll
> still be slow. Solr/lucene isn't good at that; I didn't even know Solr
> would do it at all in fact.
>
> If you really needed to do that, the way to play to solr/lucene's way of
>
> doing things, would be to have a field where you actually index each
> _character_ as a seperate token. Then leading and trailing wildcard
> search is basically reduced to a "phrase search", but where the words
> are actually characters.   But then you're going to get an index where
> pretty much every token belongs to every document, which Solr isn't that
>
> great at either, but then you can apply "commongram" stuff on top to
> help that out a lot too. Not quite sure what the end result will be,
> I've never tried it.  I'd only use that weird special "char as token"
> field for queries that actually required leading and trailing wildcards.
>
> Figuring out how to set up your analyzers, and what (if anything) you're
>
> going to have to do client-app-side to transform the user's query into
> something that'll end up searching like a "phrase search where each
> 'word' is a character.... is left as an exersize for the reader. :)
>
> Jonathan
>



-- 
Nipen Mark

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