Unrecognized expression '$toInt'

[harsh sharma]

whenever i am trying to convert string into integer i am getting this error

here is my queries

idconversion={$addFields:{convertedid:{$toInt:"$CustomerId"}} }

 db.orders_new.aggregate([idconversion])

using 3.4.20 version

[Wan Bachtiar]

whenever i am trying to convert string into integer i am getting this error

Hi Harsh,

$toInt is available as a new operator from MongoDB v4.0+. It is a shorthand from operator $convert. $convert is part of a new feature in MongoDB v4.0 to enable the aggregation pipeline to transform mixed data types into standardised formats natively within the database.

See also MongoDB: Upgrade a Replica Set to 4.0

Regards,
Wan.

​

[harsh sharma]

Thank you so much sir

cheers

Harsh