cast

# File activerecord/lib/active_record/connection_adapters/postgresql/oid/point.rb, line 12
          def cast(value)
            case value
            when ::String
              if value[0] == '(' && value[-1] == ')'
                value = value[1...-1]
              end
              cast(value.split(','))
            when ::Array
              value.map { |v| Float(v) }
            else
              value
            end
          end