Use update processor to add number of tags per doc. eg check
CountFieldValuesUpdateProcessorFactory
Doc1 -> tags:T1 T2 ; tagNum: 2
Doc2 -> tags:T1 T3 ; tagNum: 2
Doc3 -> tags:T1 T4 ; tagNum: 2
Doc4 -> tags:T1 T2 T3 ; tagNum: 3
than when you search for tags you need to get number of tags matched per
document, it can be done with recently implemented via ^=
eg
tags:(T1^=1 T2^=1 T3^=1)
then we need to subtract the expected number of tags per doc
q=sub(query($tagsAct)),tagNum)&tagsAct=tags:(T1^=1 T2^=1 T3^=1)
and then cut off the not enough coverage
q={frange l=0}sub(query($tagsAct)),tagNum)&tagsAct=tags:(T1^=1 T2^=1 T3^=1)
On Wed, May 20, 2015 at 10:10 AM, Naresh Yadav <nyadav....@gmail.com> wrote:
> Requesting Solr experts again to suggest some solutions to my above problem
> as i am not able to solve this.
>
> On Tue, May 12, 2015 at 11:04 AM, Naresh Yadav <nyadav....@gmail.com>
> wrote:
>
> > Thanks Andrew, You got my problem precisely But solutions you suggested
> > may not work for me.
> >
> > In my API i get only list of tags authorized i.e [T1, T2, T3] and based
> on
> > that only i need to construct my Solr query.
> > So first solution with NOT (T4 OR T5) will not work.
> >
> > In real case tag ids T1, T2 are UUID's, so range query also will not work
> > as i have no control on order of these ids.
> >
> > Looking for more suggestions ??
> >
> > Thanks
> > Naresh
> >
> > On Mon, May 11, 2015 at 10:05 PM, Andrew Chillrud <
> achill...@opentext.com>
> > wrote:
> >
> >> Based on his example, it sounds like Naresh not only wants the tags
> field
> >> to contain at least one of the values [T1, T2, T3] but also wants to
> >> exclude documents that contain a tag other than T1, T2, or T3 (Doc3
> should
> >> not be retrieved).
> >>
> >> If the set of possible values in the tags field is limited and known,
> you
> >> could use a NOT (or '-') clause to accomplish this. If there were 5
> >> possible tag values:
> >>
> >> tags:(( T1 OR T2 OR T3) NOT (T4 OR T5))
> >>
> >> However this doesn't seem practical if the number of possible values is
> >> large or unlimited. Perhaps something could be done with range queries:
> >>
> >> tags:(( T1 OR T2 OR T3) NOT ([* TO T1} OR {T1 TO T2} OR {T3 to * ]))
> >>
> >> however this would require whatever is constructing the query to be
> aware
> >> of the lexical ordering of the terms in the index. Maybe there are more
> >> elegant solutions, but I am not aware of them.
> >>
> >> - Andy -
> >>
> >> -----Original Message-----
> >> From: sujitatgt...@gmail.com [mailto:sujitatgt...@gmail.com] On Behalf
> >> Of Sujit Pal
> >> Sent: Monday, May 11, 2015 10:40 AM
> >> To: solr-user@lucene.apache.org
> >> Subject: Re: Solr query which return only those docs whose all tokens
> are
> >> from given list
> >>
> >> Hi Naresh,
> >>
> >> Couldn't you could just model this as an OR query since your requirement
> >> is at least one (but can be more than one), ie:
> >>
> >> tags:T1 tags:T2 tags:T3
> >>
> >> -sujit
> >>
> >>
> >> On Mon, May 11, 2015 at 4:14 AM, Naresh Yadav <nyadav....@gmail.com>
> >> wrote:
> >>
> >> > Hi all,
> >> >
> >> > Also asked this here : http://stackoverflow.com/questions/30166116
> >> >
> >> > For example i have SOLR docs in which tags field is indexed :
> >> >
> >> > Doc1 -> tags:T1 T2
> >> >
> >> > Doc2 -> tags:T1 T3
> >> >
> >> > Doc3 -> tags:T1 T4
> >> >
> >> > Doc4 -> tags:T1 T2 T3
> >> >
> >> > Query1 : get all docs with "tags:T1 AND tags:T3" then it works and
> >> > will give Doc2 and Doc4
> >> >
> >> > Query2 : get all docs whose tags must be one of these [T1, T2, T3]
> >> > Expected is : Doc1, Doc2, Doc4
> >> >
> >> > How to model Query2 in Solr ?? Please help me on this ?
> >> >
> >>
> >
> >
> >
> >
> >
>
--
Sincerely yours
Mikhail Khludnev
Principal Engineer,
Grid Dynamics
<http://www.griddynamics.com>
<mkhlud...@griddynamics.com>
