I'm having difficulty getting function scoring to work when the value is between zero and one (fractional). I want to use a reciprocal/inverse scoring function on these documents where 0.1 would be high and 10+ would be low. However, the function score query appears to ignore any document with a value less than 1.
See here example queries and document:
Any ideas what causes this or if there is a parameter I'm missing to get the function score to consider these documents?