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Posted to solr-user@lucene.apache.org by "S.L" <si...@gmail.com> on 2014/12/28 17:59:37 UTC
How to implement multi-set in a Solr schema.
Hi All,
I have a use case where I need to group documents that have a same field
called bookName , meaning if there are a multiple documents with the same
bookName value and if the user input is searched by a query on bookName ,
I need to be able to group all the documents by the same bookName together,
so that I could display them as a group in the UI.
What kind of support does Solr provide for such a scenario , and how should
I look at changing my schema.xml which as bookName as single valued text
field ?
Thanks.
Re: How to implement multi-set in a Solr schema.
Posted by "Meraj A. Khan" <me...@gmail.com>.
Thanks Jack, inorder to not affect the query time , what are the options
available to handle this as index time ? So that I group all the similar
books at index time by placing them in some kind of a set , and retrive all
the contents of the set at query time if any one them matches the query.
On Dec 29, 2014 12:49 AM, "Jack Krupansky" <ja...@gmail.com> wrote:
> You can also use group.query or group.func to group documents matching a
> query or unique values of a function query. For the latter you could
> implement an NLP algorithm.
>
>
> -- Jack Krupansky
>
> On Sun, Dec 28, 2014 at 5:56 PM, Meraj A. Khan <me...@gmail.com> wrote:
>
> > Thanks Aman, the thing is the bookName field values are not exactly
> > identical , but nearly identical , so at the time of indexing I need to
> > figure out which other book name field this is similar to using NLP
> > techniques and then put it in the appropriate bag, so that at the
> retrieval
> > time I only retrieve all the elements from that bag if any one of the
> > element matches with the search query.
> >
> > Thanks.
> > On Dec 28, 2014 1:54 PM, "Aman Tandon" <am...@gmail.com> wrote:
> >
> > > HI,
> > >
> > > You can use the grouping in the solr. You can does this by via query or
> > via
> > > solrconfig.xml.
> > >
> > > *A) via query*
> > >
> > >
> >
> http://localhost:8983?your_query_params*&group=true&group.field=bookName*
> > >
> > > You can limit the size of group (how many documents you wants to show),
> > > suppose you want to show 5 documents per group on this bookName field
> > then
> > > you can specify the parameter *group.limit=5.*
> > >
> > > *B) via solrconfig*
> > > <str name="group">true</str> <str name="group.field">*bookName*</str>
> > > <str name="group.ngroups">true</str> <str
> > name="group.truncate">true</str>
> > >
> > > With Regards
> > > Aman Tandon
> > >
> > > On Sun, Dec 28, 2014 at 10:29 PM, S.L <si...@gmail.com>
> wrote:
> > >
> > > > Hi All,
> > > >
> > > > I have a use case where I need to group documents that have a same
> > field
> > > > called bookName , meaning if there are a multiple documents with the
> > same
> > > > bookName value and if the user input is searched by a query on
> > bookName
> > > ,
> > > > I need to be able to group all the documents by the same bookName
> > > together,
> > > > so that I could display them as a group in the UI.
> > > >
> > > > What kind of support does Solr provide for such a scenario , and how
> > > should
> > > > I look at changing my schema.xml which as bookName as single valued
> > text
> > > > field ?
> > > >
> > > > Thanks.
> > > >
> > >
> >
>
Re: How to implement multi-set in a Solr schema.
Posted by Jack Krupansky <ja...@gmail.com>.
You can also use group.query or group.func to group documents matching a
query or unique values of a function query. For the latter you could
implement an NLP algorithm.
-- Jack Krupansky
On Sun, Dec 28, 2014 at 5:56 PM, Meraj A. Khan <me...@gmail.com> wrote:
> Thanks Aman, the thing is the bookName field values are not exactly
> identical , but nearly identical , so at the time of indexing I need to
> figure out which other book name field this is similar to using NLP
> techniques and then put it in the appropriate bag, so that at the retrieval
> time I only retrieve all the elements from that bag if any one of the
> element matches with the search query.
>
> Thanks.
> On Dec 28, 2014 1:54 PM, "Aman Tandon" <am...@gmail.com> wrote:
>
> > HI,
> >
> > You can use the grouping in the solr. You can does this by via query or
> via
> > solrconfig.xml.
> >
> > *A) via query*
> >
> >
> http://localhost:8983?your_query_params*&group=true&group.field=bookName*
> >
> > You can limit the size of group (how many documents you wants to show),
> > suppose you want to show 5 documents per group on this bookName field
> then
> > you can specify the parameter *group.limit=5.*
> >
> > *B) via solrconfig*
> > <str name="group">true</str> <str name="group.field">*bookName*</str>
> > <str name="group.ngroups">true</str> <str
> name="group.truncate">true</str>
> >
> > With Regards
> > Aman Tandon
> >
> > On Sun, Dec 28, 2014 at 10:29 PM, S.L <si...@gmail.com> wrote:
> >
> > > Hi All,
> > >
> > > I have a use case where I need to group documents that have a same
> field
> > > called bookName , meaning if there are a multiple documents with the
> same
> > > bookName value and if the user input is searched by a query on
> bookName
> > ,
> > > I need to be able to group all the documents by the same bookName
> > together,
> > > so that I could display them as a group in the UI.
> > >
> > > What kind of support does Solr provide for such a scenario , and how
> > should
> > > I look at changing my schema.xml which as bookName as single valued
> text
> > > field ?
> > >
> > > Thanks.
> > >
> >
>
Re: How to implement multi-set in a Solr schema.
Posted by "Meraj A. Khan" <me...@gmail.com>.
Thanks Aman, the thing is the bookName field values are not exactly
identical , but nearly identical , so at the time of indexing I need to
figure out which other book name field this is similar to using NLP
techniques and then put it in the appropriate bag, so that at the retrieval
time I only retrieve all the elements from that bag if any one of the
element matches with the search query.
Thanks.
On Dec 28, 2014 1:54 PM, "Aman Tandon" <am...@gmail.com> wrote:
> HI,
>
> You can use the grouping in the solr. You can does this by via query or via
> solrconfig.xml.
>
> *A) via query*
>
> http://localhost:8983?your_query_params*&group=true&group.field=bookName*
>
> You can limit the size of group (how many documents you wants to show),
> suppose you want to show 5 documents per group on this bookName field then
> you can specify the parameter *group.limit=5.*
>
> *B) via solrconfig*
> <str name="group">true</str> <str name="group.field">*bookName*</str>
> <str name="group.ngroups">true</str> <str name="group.truncate">true</str>
>
> With Regards
> Aman Tandon
>
> On Sun, Dec 28, 2014 at 10:29 PM, S.L <si...@gmail.com> wrote:
>
> > Hi All,
> >
> > I have a use case where I need to group documents that have a same field
> > called bookName , meaning if there are a multiple documents with the same
> > bookName value and if the user input is searched by a query on bookName
> ,
> > I need to be able to group all the documents by the same bookName
> together,
> > so that I could display them as a group in the UI.
> >
> > What kind of support does Solr provide for such a scenario , and how
> should
> > I look at changing my schema.xml which as bookName as single valued text
> > field ?
> >
> > Thanks.
> >
>
Re: How to implement multi-set in a Solr schema.
Posted by Aman Tandon <am...@gmail.com>.
HI,
You can use the grouping in the solr. You can does this by via query or via
solrconfig.xml.
*A) via query*
http://localhost:8983?your_query_params*&group=true&group.field=bookName*
You can limit the size of group (how many documents you wants to show),
suppose you want to show 5 documents per group on this bookName field then
you can specify the parameter *group.limit=5.*
*B) via solrconfig*
<str name="group">true</str> <str name="group.field">*bookName*</str>
<str name="group.ngroups">true</str> <str name="group.truncate">true</str>
With Regards
Aman Tandon
On Sun, Dec 28, 2014 at 10:29 PM, S.L <si...@gmail.com> wrote:
> Hi All,
>
> I have a use case where I need to group documents that have a same field
> called bookName , meaning if there are a multiple documents with the same
> bookName value and if the user input is searched by a query on bookName ,
> I need to be able to group all the documents by the same bookName together,
> so that I could display them as a group in the UI.
>
> What kind of support does Solr provide for such a scenario , and how should
> I look at changing my schema.xml which as bookName as single valued text
> field ?
>
> Thanks.
>