I'm querying an Index which has two types of child documents (let's call
them ChildTypeA and ChildTypeB)
I wrap the subqueries for each of these documents in a boolean clause,
something like this:
*q=+{! parent which=type:parent <query_on_child_type_B>} +{! parent
which=type:parent <query_on_child_type_B>}*
I've been trying to get facet counts on documents of ChildTypeA (rolled up
by parent) and I've tried the following approaches
- Tried Block Join Faceting using the JSON API i.e. using the
unique(_root_) approach.
- Enabled docValues on _root_
- *This did not scale well*
- Tried using the BlockJoinFacet component.
- Had to customize it since it expects that only one
*ToParentBlockJoinQuery* clause to be present in the query.
- Since I needed facet counts only on ChildTypeA, I changed it to
ignore the clause on ChildTypeB
- I did not enable docValues on _root_ since it was not mentioned in
the documentation.
- *This approach did not scale well*
I needed advice on whether I could have done anything better in any one of
the two approached I've tried so far. Also if there exists some other
approached I could try.
Would using the uniqueBlock in 7.4 help? (Though this would require me to
upgrade my Solr version)
