Thanks, query time joins are not an option for me, because of the size of the index and hence the join performance, I will look at Siren.
On 29/01/16, 10:16 PM, "Alessandro Benedetti" <abenede...@apache.org> wrote: >Probably if you are interested in a many-to-many relation, you could be >interested in the query time join. >it has been the first type of join integrated in Solr. >It allow you to avoid redundancies. >It's slower than block join, but it doesn't force you to any specific >indexing approach. >It became less and less popular but there are scenario could be useful ! > >Take a look to Siren as well, it could be interesting, not sure it will >help you as Siren will duplicate nested documents. >Cheers > >On 29 January 2016 at 15:32, Jack Krupansky <jack.krupan...@gmail.com> >wrote: > >> If you wish to change, add, or delete a child or change the parent you >>must >> do an add of the entire block again with both the parent and all >>children. >> This is because the efficiency of Block Join comes from the documents >>being >> adjacent in Lucene and segments are immutable in Lucene, so the entire >> block must be written to a new segment. >> >> >> -- Jack Krupansky >> >> On Fri, Jan 29, 2016 at 5:13 AM, Sathyakumar Seshachalam < >> sathyakumar_seshacha...@trimble.com> wrote: >> >> > Hi, >> > >> > Am trying to investigate the possibility of using Block Join query >>parser >> > in a many-to-many relation scenario. >> > Observation is that when a document is added as a child to more than >>one >> > parent document (I use Solrj to do this), I seem to get two copies of >>the >> > child document. Can this be avoided ? Is this per design ? >> > Are there are articles talking about ways to model a many-to-many >> > relationship (even if its a hacky solution). >> > >> > >> > > > >-- >-------------------------- > >Benedetti Alessandro >Visiting card : http://about.me/alessandro_benedetti > >"Tyger, tyger burning bright >In the forests of the night, >What immortal hand or eye >Could frame thy fearful symmetry?" > >William Blake - Songs of Experience -1794 England
