Hey,
quick update, I managed to solve this with ESQL, even though I now have to run a second query before due to not being able to run full text search within ESQL, but keyword only.
It's roughly like this, using the SUM grouped by a field and dividing it.
FROM idx |
WHERE (term LIKE "a" OR term LIKE "b") |
STATS final_score=SUM(score)/COUNT(field) BY field |
SORT final_score DESC
--Alex
P.S. Full text search matching in ESQL wanted 