I'm running a simple test--trying to index something and then search for it. I index a simple document, but then when a search for a string in it, I get back what looks to be an empty document (it has no fields). Lucene seems to be doing something, because if I search for a word that's not in the document, it returns 0 results.

Any reason why Lucene would reliably return a document when it finds one that matches the given query, and yet that document has nothing in it?

Thanks!

PS: I'm actually running Lucandra (Lucene + Cassandra). That certainly may be a relevant detail, but not sure.