But /export has to be working to support the gatherNodes() expression. Joel Bernstein http://joelsolr.blogspot.com/
On Fri, May 5, 2017 at 7:40 AM, Joel Bernstein <joels...@gmail.com> wrote: > This may work for you: > https://cwiki.apache.org/confluence/display/solr/Graph+Traversal > > Joel Bernstein > http://joelsolr.blogspot.com/ > > On Fri, May 5, 2017 at 5:39 AM, Zheng Lin Edwin Yeo <edwinye...@gmail.com> > wrote: > >> Hi, >> >> I'm using Solr 6.4.2. >> >> Is it possible to do a query based on output from another collection in >> Solr Streaming, so that the entire query can be passed at one go? >> >> For example, I have a field called reference_s in collection1. In >> collection2, I will need to pass what is in the reference_s from >> collection1 into the search in collection2. >> >> Currently, I will need to do a normal query to collection1, to retrieve >> all >> the required values in reference_s, and put them into this join query, >> which is a two step process. This is probably not so effective and also >> slow down the search. >> >> >> hashJoin(parallel(collection2, >> workers=3, >> sort="id asc", >> innerJoin(search(collection1, q="*:*", >> fl="id,reference_s", >> sort="id asc", qt="/export", >> partitionKeys="id"), >> search(collection2, >> q="reference_s:?", fl="id, >> year_i,reference_s", sort="id asc", qt="/export", >> partitionKeys="id"), >> on="id")), >> hashed=search(collection3, >> q="day_i:7", fl="id, day_i", >> sort="id asc", qt="/export"), >> on="id") >> >> >> Regards, >> Edwin >> > >
