I think as usually Erick says, this is a X-Y problem.
I think the user was trying to solve the infix autocomplete problem with
faceting.
We should get from him the initial problem to try to suggest a better
solution.
Cheers
2015-07-22 14:01 GMT+01:00 Markus Jelsma <markus.jel...@openindex.io>:
> Hello - why not index the facet field as n-grams? It blows up the index
> but is very fast!
> Markus
>
> -----Original message-----
> > From:Erick Erickson <erickerick...@gmail.com>
> > Sent: Tuesday 21st July 2015 21:36
> > To: solr-user@lucene.apache.org
> > Subject: Re: Performance of facet contain search in 5.2.1
> >
> > "contains" has to basically examine each and every term to see if it
> > matches. Say my
> > facet.contains=bbb. A matching term could be
> > aaabbbxyz
> > or
> > zzzbbbxyz
> >
> > So there's no way to _know_ when you've found them all without
> > examining every last
> > one. So I'd try to redefine the problem to not require that. If it's
> > absolutely required,
> > you can do some interesting things but it's going to inflate your index.
> >
> > For instance, "rotate" words (assuming word boundaries here). So, for
> > instance, you have
> > a text field with "my dog has fleas". Index things like
> > my dog has fleas|my dog has fleas
> > dog has fleas my|my dog has fleas
> > has fleas my dog|my dog has fleas
> > fleas my dog has|my dog has fleas
> >
> > Literally with the pipe followed by the original text. Now all your
> > contains clauses are
> > simple prefix facets, and you can have the UI split the token on the
> > pipe and display the
> > original.
> >
> > Best,
> > Erick
> >
> > On Tue, Jul 21, 2015 at 1:16 AM, Lo Dave <dav...@hotmail.com> wrote:
> > > I found that facet contain search take much longer time than facet
> prefix search. Do anyone have idea how to make contain search faster?
> > > org.apache.solr.core.SolrCore; [concordance] webapp=/solr path=/select
> params={q=sentence:"duty+of+care"&facet.field=autocomplete&indent=true&facet.prefix=duty+of+care&rows=1&wt=json&facet=true&_=1437462916852}
> hits=1856 status=0 QTime=5 org.apache.solr.core.SolrCore; [concordance]
> webapp=/solr path=/select
> params={q=sentence:"duty+of+care"&facet.field=autocomplete&indent=true&facet.contains=duty+of+care&rows=1&wt=json&facet=true&facet.contains.ignoreCase=true}
> hits=1856 status=0 QTime=10951
> > > As show above, prefix search take 5 but contain search take 10951
> > > Thanks.
> > >
>
--
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Benedetti Alessandro
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"Tyger, tyger burning bright
In the forests of the night,
What immortal hand or eye
Could frame thy fearful symmetry?"
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