child doc filter

[Tim Williams <wi...@gmail.com>]

I'm using the BlockJoinQuery to query child docs and return the
parent.  I'd like to have the equivalent of a filter that applies to
child docs and I don't see a way to do that with the BlockJoin stuffs.
It looks like I could modify it to accept some childFilter param and
add a QueryWrapperFilter right after the child query is created[1] but
before I did that, I wanted to see if there's a built-in way to
achieve the same behavior?

Thanks,
--tim

[1] - https://github.com/apache/lucene-solr/blob/master/solr/core/src/java/org/apache/solr/search/join/BlockJoinParentQParser.java#L69

Re: child doc filter

[Mikhail Khludnev <mk...@apache.org>]

Hello Tim,

I think
http://blog-archive.griddynamics.com/2013/12/grandchildren-and-siblings-with-block.html
provides a few relevant examples. To summarize, it's wort to use nested
query syntax {!parent...  v=$foo} to nest a complex child clause. If you
need to exploit filter cache, use filter(foo:bar) syntax.

Regards

On Thu, Nov 3, 2016 at 10:13 PM, Tim Williams <wi...@gmail.com> wrote:

> I'm using the BlockJoinQuery to query child docs and return the
> parent.  I'd like to have the equivalent of a filter that applies to
> child docs and I don't see a way to do that with the BlockJoin stuffs.
> It looks like I could modify it to accept some childFilter param and
> add a QueryWrapperFilter right after the child query is created[1] but
> before I did that, I wanted to see if there's a built-in way to
> achieve the same behavior?
>
> Thanks,
> --tim
>
> [1] - https://github.com/apache/lucene-solr/blob/master/solr/
> core/src/java/org/apache/solr/search/join/BlockJoinParentQParser.java#L69
>



-- 
Sincerely yours
Mikhail Khludnev