I _think_ what is happening is that you are going in both parent and
child directions in your filters.

Try making your query ('q') define your original domain
(q=type_s:author) and then 'books' goes inside the parent "author"
scope and that's where you change your domain.

Regards,
    Alex.
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On 4 October 2016 at 21:22, Zheng Lin Edwin Yeo <edwinye...@gmail.com> wrote:
> Some of the sample documents are like the following:
>
> Author is the Header, while Books are the Child
>
> Author: Edwin
> Books: Book 1
>            Book 2
>            Book 3
>
> Author: John
> Books: Book 4
>            Book 5
>
> For this query:
>
> http://localhost:8983/solr/collection1/select?q=*:*
> &json.facet={
>    author:{
>         type:terms,
>         field:author_s,
>   domain: { blockParent : "type_s:author" }
>    },
>    books:{
> type:terms,
> field:book_s,
> domain: { blockChild : "type_s:book" }
>   }
> }&fl=null&rows=0
>
> I'll get the following results:
>
> "facets":{
>     "count":2,
>     "author":{
>       "buckets":[{
>           "val":"Edwin",
>           "count":1,
>           "books":{
>             "buckets":[]}},
>         {
>           "val":"John",
>           "count":1,
>           "books":{
>             "buckets":[]}},
>
> I can't manage to get the list of books to be displayed in the buckets for
> books.
>
>
> Regards,
> Edwin
>
>
> On 4 October 2016 at 19:29, Yonik Seeley <ysee...@gmail.com> wrote:
>
>> Perhaps show a couple sample documents, and then what data you're
>> looking for in a response?
>> This stuff can be tough to pin down without concrete examples.
>>
>> -Yonik
>>
>>
>> On Tue, Oct 4, 2016 at 5:22 AM, Zheng Lin Edwin Yeo
>> <edwinye...@gmail.com> wrote:
>> > I have tried to use this nested query, but I still can't get results for
>> > the list of books.
>> >
>> > http://localhost:8983/solr/collection1/select?q=*:*
>> > &json.facet={
>> >    items:{
>> >       type:terms,
>> >       field:author_s,
>> >  domain: { blockParent : "type_s:author" },
>> >  facet:{
>> > by1:{
>> > type:terms,
>> > field:book_s,
>> > domain: { blockChild : "type_s:book" }
>> > }
>> > }
>> >  }
>> >    }
>> > }&fl=null&rows=0
>> >
>> >
>> > Only when I didn't use the nested method, but query it individually like
>> > the one below, the I managed to get the result.
>> >
>> > http://localhost:8983/solr/collection1/select?q=*:*
>> > &json.facet={
>> >    items:{
>> >         type:terms,
>> >         field:author_s,
>> >   domain: { blockParent : "type_s:author" }
>> >    },
>> >    by1:{
>> > type:terms,
>> > field:book_s,
>> > domain: { blockChild : "type_s:book" }
>> >   }
>> > }&fl=null&rows=0
>> >
>> >
>> > Regards,
>> > Edwin
>> >
>> >
>> > On 4 October 2016 at 15:22, Alexandre Rafalovitch <arafa...@gmail.com>
>> > wrote:
>> >
>> >> You need to switch the domain to the child records. It is somewhere in
>> the
>> >> guide or Yonik's blog linked.
>> >>
>> >> Regards,
>> >>    Alex
>> >>
>> >> On 4 Oct 2016 1:55 PM, "Zheng Lin Edwin Yeo" <edwinye...@gmail.com>
>> wrote:
>> >>
>> >> > Hi,
>> >> >
>> >> > Is it possible to do nested faceting on both records in parent and
>> child
>> >> in
>> >> > a single query?
>> >> >
>> >> > For example, I want to facet both author_s and book_s. Author is
>> indexed
>> >> as
>> >> > a parent, whereas Book is indexed as a child.
>> >> >
>> >> > I tried the following JSON Facet query, which is to do a facet of all
>> the
>> >> > list of author (in the parent), followed by a facet of all the list of
>> >> > books (in the child) that are written by the author.
>> >> >
>> >> > http://localhost:8983/solr/collection1/select?q=*:*
>> >> > &json.facet={
>> >> >    items:{
>> >> >       type:terms,
>> >> >       field:author_s,
>> >> >  facet:{
>> >> > by1:{
>> >> > type:terms,
>> >> > field:book_s
>> >> > }
>> >> > }
>> >> >  }
>> >> >    }
>> >> > }&fl=null&rows=0
>> >> >
>> >> >
>> >> > However, it only managed to return me the facet of the list of
>> author. I
>> >> > could not get any results for the list of books. Is this possible to
>> be
>> >> > done, or what could be wrong with my query?
>> >> >
>> >> >
>> >> > Regards,
>> >> > Edwin
>> >> >
>> >>
>>

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