switch what {
	case timePartYear:
		return FromInt(int64(t.Year())), nil
	case timePartMonth:
		return FromInt(int64(t.Month())), nil
	case timePartDay:
		return FromInt(int64(t.Day())), nil
	case timePartHour:
		return FromInt(int64(t.Hour())), nil
	case timePartMinute:
		return FromInt(int64(t.Minute())), nil
	case timePartSecond:
		return FromInt(int64(t.Second())), nil
	case timePartTimezoneHour:

	seen bool
}

func newAggVal(fn FuncName) *aggVal {
	switch fn {
	case aggFnAvg, aggFnSum:
		return &aggVal{runningSum: FromFloat(0)}
	case aggFnMin:
		return &aggVal{runningMin: FromInt(0)}
	case aggFnMax:
		return &aggVal{runningMax: FromInt(0)}
	default:
		return &aggVal{}
	}
}

// evalAggregationNode - performs partial computation using the
// current row and stores the result.
//

  public void testFromInt() {
    for (ExpectedHashCode expected : expectedHashCodes) {
      if (expected.bytes.length == 4) {
        HashCode fromInt = HashCode.fromInt(expected.asInt);
        assertExpectedHashCode(expected, fromInt);
      }
    }
  }

  // expectedHashCodes must contain at least one hash code with 8 bytes
  public void testFromLong() {

  public void testFromInt() {
    for (ExpectedHashCode expected : expectedHashCodes) {
      if (expected.bytes.length == 4) {
        HashCode fromInt = HashCode.fromInt(expected.asInt);
        assertExpectedHashCode(expected, fromInt);
      }
    }
  }

  // expectedHashCodes must contain at least one hash code with 8 bytes
  public void testFromLong() {

	switch rval := result.(type) {
	case string:
		return FromString(rval), nil
	case float64:
		return FromFloat(rval), nil
	case int64:
		return FromInt(rval), nil
	case uint64:
		if rval <= math.MaxInt64 {
			return FromInt(int64(rval)), nil
		}
		return FromFloat(float64(rval)), nil
	case bool:
		return FromBool(rval), nil
	case jstream.KVS:
		bs, err := json.Marshal(result)

	inferTypeAsString(v)
	s, ok := v.ToString()
	if !ok {
		err := fmt.Errorf("%s/%s expects a string argument", sqlFnCharLength, sqlFnCharacterLength)
		return nil, errIncorrectSQLFunctionArgumentType(err)
	}
	return FromInt(int64(len([]rune(s)))), nil
}

func lowerCase(v *Value) (*Value, error) {
	inferTypeAsString(v)
	s, ok := v.ToString()
	if !ok {
		err := fmt.Errorf("%s expects a string argument", sqlFnLower)

	FromNull,
	func() *Value {
		return FromBool(true)
	},
	func() *Value {
		return FromBytes([]byte("byte contents"))
	},
	func() *Value {
		return FromFloat(math.Pi)
	},
	func() *Value {
		return FromInt(0x1337)
	},
	func() *Value {
		t, err := time.Parse(time.RFC3339, "2006-01-02T15:04:05Z")
		if err != nil {
			panic(err)
		}
		return FromTimestamp(t)
	},
	func() *Value {

	default:
		return fmt.Sprintf("%v:INVALID", v.value)
	}
}

// FromFloat creates a Value from a number
func FromFloat(f float64) *Value {
	return &Value{value: f}
}

// FromInt creates a Value from an int
func FromInt(f int64) *Value {
	return &Value{value: f}
}

// FromString creates a Value from a string
func FromString(str string) *Value {
	return &Value{value: str}
}

   * are interpreted in little endian order.
   *
   * @since 15.0 (since 12.0 in HashCodes)
   */
  public static HashCode fromInt(int hash) {
    return new IntHashCode(hash);
  }

  private static final class IntHashCode extends HashCode implements Serializable {
    final int hash;

    IntHashCode(int hash) {

                  ImmutableList.of(HashCode.fromInt(32), HashCode.fromLong(32L)));
        });
  }

  public void testCombineUnordered() {
    HashCode hash31 = HashCode.fromInt(31);
    HashCode hash32 = HashCode.fromInt(32);
    assertEquals(hash32, Hashing.combineUnordered(ImmutableList.of(hash32)));
    assertEquals(HashCode.fromInt(64), Hashing.combineUnordered(ImmutableList.of(hash32, hash32)));