: ExternalFileField can only be used for boosting. It is not a : "first-class" field.
correct, but it can be used in a FunctionQuery, which means it can be filtered on (using "frange") and (on trunk) it can be sorted on, which are the two needs the OP asked about... : > : Another approach would be to use ExternalFileField and keep the price data, : > : normalized to USD, outside of the index. Every time the currency rates : > : changed, we would calculate new normalized prices for every document in the : > : index. -Hoss
