Really, really, _really_ consider denormalizing the data. You're trying to use Solr as a RDBMS. Solr is a _great_ search engine, but it's not a DB and trying to make it behave as one is almost always a mistake.
Using joins should really be something you try _last_. Best, Erick On Tue, May 13, 2014 at 8:27 PM, Jay Potharaju <jspothar...@gmail.com> wrote: > Hi, > I am trying to join across multiple cores using query time join. Following > is my setup > 3 cores - Solr 4.7 > core1: 0.5 million documents > core2: 4 million documents and growing. This contains the child documents > for documents in core1. > core3: 2 million documents and growing. Contains records from all users. > > core2 contains documents that are accessible to each user based on their > permissions. The number of documents accessible to a user range from couple > of 1000s to 100,000. > > I would like to get results by combining all three cores. For each search I > get documents from core3 and then query core1 to get parent documents & > then core2 to get the appropriate child documents depending of user > permissions. > > I 'm referring to this link to join across cores > http://stackoverflow.com/questions/12665797/is-solr-4-0-capable-of-using-join-for-multiple-core > > {!join from=fromField to=toField fromIndex=fromCoreName}fromQuery > > This is not working for me. Can anyone suggest why it is not working. Any > pointers on how to search across multiple cores. > > thanks > > > > J
