I want to search over Multiple index. We have MultiSearcher Lucene api available. But my issue is that the multiple index on which i want to search may contain same document. Two documents I am considering to be same based on if value of one or more fields of the documents are exactly equal. I want to implement Lucene search on these muliple indexes based on preference. So when i search using a query that would match a similar document(as per the condition of similarity mentioned above), the search will return document from the index having high preference.

Thanks in Advance