Hi, I am currently evaluating a system that uses Lucene, so please excuse any lack of understanding.
Could somebody tell me if it is possible to query across separate indexes with different criteria, but then to join/merge the results. An analogy is querying two separate tables then joining based on a key. This sounds odd so I'll try and give a concrete example, it's not easy to explain either! The system holds 2 conceptually different types of information: nodes(proteine interactors) and edges(protein interactions). We currently index the edges, and add all of the node information to the record as well. This causes problems when we want to filter on node information, as we will always have more than one node in a record. For example taking one edge record: if the index field "species" on one node is "mouse" and one is "rat", then my index record has 2 species. This is sometimes undesirable. If I had an index of node information and an index of edge information, I could run a query which filters on node fields and edge fields; then combines based on a specific ID field. Sorry if the question is a little unclear. Many thanks
