Ok., my case is like this: I have Solr index with some documents that must be left intact. I also need to store somewhere else some data related to documents in Solr (it can be SQL database or another Solr core).
In other words - I need to have some data stored independently to main Solr index (for example tagging, user-rating, etc), but I need then to use such data in queries to the Solr index. Now - what I need to extend/replace to be able to: 1) filter Solr queries with such remote data (I can fetch IDs of documents that should be listed and I need to intersect it somehow with query results)? 2) Somehow extend returned results (documents itself or as additional section in response similar to highlighter) and provide related data (from external source) with selected documents. Any help appreciated. -- Maciej Liżewski
