Currently there is no way to know what text in a document matched the query. 2.4 did include the field queryDebugString but that is also gone in 2.6. I think it's worthwhile to look at how elastic search provides this functionality.

http://www.elasticsearch.org/guide/en/elasticsearch/reference/current/search-request-highlighting.html

The motivation is any search view that contains documents (think pubmed or other scientific search engines)

This should preferably be an option