datetime is null in mysql

[hope1234567hope]

"collections": {
"class": {
"_id": "string",
"tests": "string",
"lastUpdate": "DATETIME"

in mongodb "lastUpdate" : ISODate("2019-01-03T13:01:01Z") ；
but in mysql，lastUpdate is null？why？

[ssuriyayuvan]

yeah i also face this problem. any answer you find?

[seuaCoder]

i commented the line 25 in type.js:
// if (typeof val !== 'number') return 'NULL'
Woeking now.