node.js - creating model in mongoose -

this schema design mysql table, trying migrate mongodb , using mongoose , confuse of datatype use in creating model locators table or collection... still new on mongodb hope can me. or okay in mongoose use model without declaring datatype ?

like this

var locatormodel = new schema({}); 

thank in advance.

    create table `locators` (     `id` int(10) unsigned not null auto_increment,     `mch_id` varchar(15) not null ,     `lat` double(10,6) null default null,     `lng` double(10,6) null default null,     `latcot` char(1) null default null,     `ttime` time null default null,     `tdate` date null default null,     `tdatetime` datetime null default null,     `velo` decimal(5,2) null default null,     `created_at` timestamp null default current_timestamp,     `updated_at` timestamp null default null,      primary key (`id`),     index `locators_mch_id_tdatetime_index` (`mch_id`, `tdatetime`),     index `locators_created_at_index` (`created_at`) )