Hi Alisa, The issue here is still open so it seems highly unlikely that it would even get to 6.0, which is around the corner. I think this would only be out with 6.1 at the earliest.
On Fri, Mar 25, 2016 at 11:12 AM, Alisa Z. <prol...@mail.ru> wrote: > Mikhail, > Thank you for the answer. > I'd be happy to contribute tons of test cases on nested structures and > their querying and faceting... > I am working on a case of moving very nested data structures to Solr (and > the other option is ES...) but so far Solr seems to be quite behind... It's > great to see that it is moving in that direction though. I am happy to > provide the use-cases (that are out of eCommerce actually) and publicly > available test-cases. > > Is it correct that the patch will appear in a release version no sooner > than Solr 6.0 or even later? > > Thanks, > Alisa > > >Четверг, 24 марта 2016, 15:52 -04:00 от Mikhail Khludnev < > mkhlud...@griddynamics.com>: > > > >I think you cal already kick tires and contribute a test case into > >https://issues.apache.org/jira/browse/SOLR-8208 that's already reachable > >there I believe, but I still working on core design. > > > >On Thu, Mar 24, 2016 at 10:02 PM, Alisa Z. < prol...@mail.ru > wrote: > > > >> Hi all, > >> > >> I apologize for duplicating my previous message: > >> Solr 5.3: anything similar to ChildDocTransformerFactory that does not > >> flatten the hierarchical structure? > >> > >> However, it is still an open and interesting question: > >> > >> Following the example from > https://dzone.com/articles/using-solr-49-new > >> , let's say we are given multiple-level nested structure: > >> > >> <doc> > >> <field name="id">1</field> > >> <field name="name">I am the parent</field> > >> <field name="cat">PARENT</field> > >> <doc> > >> <field name="id">1.1</field> > >> <field name="name">I am the 1st child</field> > >> <field name="cat">CHILD</field> > >> </doc> > >> <doc> > >> <field name="id">1.2</field> > >> <field name="name">I am the 2nd child</field> > >> <field name="cat">CHILD</field> > >> <doc> > >> <field name="id">1.2.1</field> > >> <field name="name">I am a grandchildren</field> > >> <field name="cat">GRANDCHILD</field> > >> </doc> > >> </doc> > >> </doc> > >> > >> > >> Querying > >> q={!parent which="cat:PARENT"}name:(I am +child)&fl=id,name,[child > >> parentFilter=cat:PARENT] > >> > >> will return flattened structure, where cat:CHILD and cat:GRANDCHILD > >> documents end up on the same level: > >> <doc> > >> <field name="id">1</field> > >> <field name="name">I am the parent</field> > >> <field name="cat">PARENT</field> > >> <doc> > >> <field name="id">1.1</field> > >> <field name="name">I am the 1st child</field> > >> <field name="cat">CHILD</field> > >> </doc> > >> <doc> > >> <field name="id">1.2</field> > >> <field name="name">I am the 2nd child</field> > >> <field name="cat">CHILD</field> > >> </doc> > >> <doc> > >> <field name="id">1.2.1</field> > >> <field name="name">I am a grandchildren</field> > >> <field name="cat">GRANDCHILD</field> > >> </doc> > >> </doc> Indeed, the JAVAdocs for ChildDocTransformerFactory say: "This > >> transformer returns all descendants of each parent document in a flat > list > >> nested inside the parent document". > >> > >> Yet is there any way to preserve the hierarchy in the response? I really > >> need to find the way to preserve the structure in the response. > >> > >> Thank you in advance! > >> > >> -- > >> Alisa Zhila > >> ---------------------------------------------------------------------- > >> > > > > > > > >-- > >Sincerely yours > >Mikhail Khludnev > >Principal Engineer, > >Grid Dynamics > > > >< http://www.griddynamics.com > > >< mkhlud...@griddynamics.com > > > -- Anshum Gupta
