presto-main/src/main/java/io/prestosql/operator/scalar/RowNotEqualOperator.java/RowNotEqualOperator/notEqual
class RowNotEqualOperator:    @UsedByGeneratedCode
    public static Boolean notEqual(RowType rowType, List<MethodHandle> fieldEqualOperators, Block leftRow, Block rightRow)
    {
        Boolean result = RowEqualOperator.equals(rowType, fieldEqualOperators, leftRow, rightRow);
        if (result == null) {
            return null;
        }
        return !result;
    }