I have been trying to get the function score query to work with range filters and query_string query. I am using the field_value_factor inside the function score as well as the range filters and query_string. Using the query_String alone with the function score query works perfectly fine, but when I add the range filters inside a bool query I always get 0 results.
I have tried a bunch of ways of putting the query, but none of them seems to work. I am not using any API to call, just testing this out on kibana on ES 5.0