Ok. I am using a different join to work on sharding. This one seems like
doesn´t allow multivalue field join.
{!join method=crossCollection from=PersonID to=PersonID fromIndex=document
v='type:(pdf)'}
Thanks
Sergio Maroto
On Fri, 28 Apr 2023 at 17:52, Ron Haines <mickr...@gmail.com> wrote:
> using Solr 8.11, and 9.1.
>
> ok, looks like I'm doing a: {!join from=group_id_mv
> fromIndex=primary_rollup to=group_member_id score=none}
>
> where 'group_id_mv' is multiValued='true'
> and 'group_member_id' is multiValued='true'
>
> Are you certain the docs you need to join are on the same shard? I believe
> that is a requirement.
>
> Ron
>
> On Fri, Apr 28, 2023 at 6:48 AM Sergio García Maroto <marot...@gmail.com>
> wrote:
>
> > Thanks both for your responses.
> >
> > I am on Solr 8.10.1 and I found that as far as I define any field
> > multivalued. It doesn´t work.
> > I tried using both multivalue with no luck.
> >
> > Hey Ron. You mentioned it works with multivalued fields. What Solr
> version
> > are you using?
> > Can you confirm that please and maybe give a bit more info?
> >
> > Thanks a lot
> > Sergio
> >
> >
> >
> > On Thu, 27 Apr 2023 at 20:29, Mikhail Khludnev <m...@apache.org> wrote:
> >
> > > Hi. With regards to having multi-valued fromField
> > >
> > >
> > >
> >
> org.apache.solr.search.join.CrossCollectionJoinQuery.CrossCollectionJoinQueryWeight#createCloudSolrStream
> > > requests export handler with sort by fromField
> > >
> > > params.set(CommonParams.FL, fromField);
> > > params.set(CommonParams.SORT, fromField + " asc");
> > > params.set(CommonParams.QT, "/export");
> > >
> > > However, the export handler doesn't sort by mv field
> > >
> >
> https://solr.apache.org/guide/8_9/exporting-result-sets.html#specifying-the-sort-criteria
> > > So, there should be an error somewhere.
> > >
> > >
> > > On Thu, Apr 27, 2023 at 8:48 PM Ron Haines <mickr...@gmail.com> wrote:
> > >
> > >> For what it's worth, I have recently used the cross collection join.
> I
> > >> did
> > >> make sure that the 2 fields were defined the same, as far as both
> being
> > >> 'multi-value'. Although, I am not certain that is a requirement.
> > >>
> > >> Now, the other thing I ran into is that my 'documents' collection was
> > >> sharded, say across 5 shards. But, my 'person' collection was on a
> > single
> > >> shard. I came to realize that the only time the join was working was
> > for
> > >> the 'documents' collection documents, that were on the same shard as
> the
> > >> 'person' collection. My 'person' collection was quite small. So, to
> > >> address this, I simply replicated my 'person' collection across all 5
> > >> shards.
> > >>
> > >> I'm still in the process of 'certifying' if what I described is
> > >> actually behaving the way I think it should. So far, so good.
> > >>
> > >> Ron Haines
> > >>
> > >> On Thu, Apr 27, 2023 at 9:53 AM Sergio García Maroto <
> > marot...@gmail.com>
> > >> wrote:
> > >>
> > >> > Hi,
> > >> >
> > >> > I am trying to use crossCollection join to be able to use sharding.
> > >> > I am joining to collections Person and documents. Finding people
> with
> > >> > documetns of type pdf. Just realised no people comes back
> > >> > and noticed PersonID in document core is multivalue field.
> > >> >
> > >> > <field name="PersonID" type="string" indexed="true" stored="true"
> > >> > docValues=
> > >> > "true" multiValued="true" />
> > >> >
> > >> > My query looks like
> > >> > {!join method=crossCollection from=PersonID to=PersonID
> > >> fromIndex=document
> > >> > v='type:(pdf)'}
> > >> >
> > >> > Is this feature not working on multivalue fields? Is there any other
> > >> > option?
> > >> >
> > >> > Regards
> > >> > Sergio Maroto
> > >> >
> > >>
> > >
> > >
> > > --
> > > Sincerely yours
> > > Mikhail Khludnev
> > > https://t.me/MUST_SEARCH
> > > A caveat: Cyrillic!
> > >
> >
>
