: Just tried the bq approach and it works beautifully. Exactly what I was : looking for. Still, I'd like to know which approach is the preferred? Thanks : again guys.
i personally recommend the function approach, because it gives you a more gradual falloff in terms of the scores of documents ... the BQ approahc works great for simple boosting of "things in the last N days should score really high" but 1 millisecond after that cut off the score plummets immediately. side note... : > > Sorry just correcting myself: : > > <str name="bq">your_date_field:[NOW-24HOURS TO NOW]^ 10.0</str> the first example is perfectly fine, and will be more efficient because it will take better advantage of the field cache... : > > > <str name="bq">your_date_field:[NOW/DAY-24HOURS TO NOW]^10.0</str> ...if you don't round down to the nearest day, then every request will generate a new query which will get put in the filterCache. if a day isn't granular enough for you, you can round to the nearest hour (or even minute) but i strongly suggest you round to something so you don't wind up using millisecond precision.... <str name="bq">your_date_field:[NOW/HOUR-1DAY TO NOW]^10.0</str> -Hoss
