cast_value

# File activerecord/lib/active_record/connection_adapters/postgresql/oid/range.rb, line 20
          def cast_value(value)
            return if value == 'empty'
            return value unless value.is_a?(::String)

            extracted = extract_bounds(value)
            from = type_cast_single extracted[:from]
            to = type_cast_single extracted[:to]

            if !infinity?(from) && extracted[:exclude_start]
              raise ArgumentError, "The Ruby Range object does not support excluding the beginning of a Range. (unsupported value: '#{value}')"
            end
            ::Range.new(from, to, extracted[:exclude_end])
          end