return !v.IsMissing(), nil
		}
		// Forward to not equal.
		op = opIneq
	default:
	}

	// Check if type conversion/inference is needed - it is needed
	// if the Value is a byte-slice.
	err = inferTypesForCmp(v, a)
	if err != nil {
		return false, err
	}

	// Check if either is nil
	if v.IsNull() || a.IsNull() {
		// If one is, both must be.
		return boolCompare(op, v.IsNull(), a.IsNull())
	}

func (e *In) evalInNode(r Record, lhs *Value, tableAlias string) (*Value, error) {
	// Compare two values in terms of in-ness.
	var cmp func(a, b Value) bool
	cmp = func(a, b Value) bool {
		// Convert if needed.
		inferTypesForCmp(&a, &b)

		if a.Equals(b) {
			return true
		}

		// If elements, compare each.
		aA, aOK := a.ToArray()
		bA, bOK := b.ToArray()
		if aOK && bOK {
			if len(aA) != len(bA) {

		return arg, nil
	}
	return FromNull(), nil
}

func nullif(v1, v2 *Value) (res *Value, err error) {
	// Handle Null cases
	if v1.IsNull() || v2.IsNull() {
		return v1, nil
	}

	err = inferTypesForCmp(v1, v2)
	if err != nil {
		return nil, err
	}

	atleastOneNumeric := v1.isNumeric() || v2.isNumeric()
	bothNumeric := v1.isNumeric() && v2.isNumeric()
	if atleastOneNumeric || !bothNumeric {