Recoll 1.24 and later support range clauses on fields which have been configured to support it. No default field uses them currently, so this paragraph is only interesting if you modified the fields configuration and possibly use a custom input handler.
A range clause looks like one of the following:
myfield:small..bigmyfield:small..myfield:..big
The nature of the clause is indicated by the two dots
.., and the effect is to filter the results for
which the myfield value is in the
possibly open-ended interval.
See the section about the
fields configuration file
for the details of configuring a field for range searches (list
them in the [values] section).
