search for: swish_tokenpos_bump

I'm trying to determine the best way to index facets with multiple values. For example, let's say we have several books and we want an Author facet where one can filter the books by the author. The problem is each book can have multiple authors. Is there a way to index multiple author names into a single value slot for each book? I see there is a Xapian::StringListSerialiser class that