You could do q={!boost b=$b v=$qq} qq=your query b=YOUR-FACTOR
If what you want is to provide a value outside. Also, with later Solrs, you can use ${whatever} syntax in your main query, which might work for you too. Upayavira On Tue, Jul 14, 2015, at 09:28 PM, Olivier Lebra wrote: > Is there a way to do something like this: " bf=myfield^$myfactor " ? > (Doesn't work, the boost value has to be a direct number) > > Thanks, > Olivier