case castFloat:
		f, err := floatCast(v)
		return FromFloat(f), err

	case castString:
		s, err := stringCast(v)
		return FromString(s), err

	case castTimestamp:
		t, err := timestampCast(v)
		return FromTimestamp(t), err

	case castBool:
		b, err := boolCast(v)
		return FromBool(b), err

	case castDecimal, castNumeric:
		fallthrough

	default: