I'm getting this error on an existing collection when I tried to aggregate to join two collections
show dbs
Bankerise 172 kB admin 102 kB config 73.7 kB local 73.7 kB
use Bankerise
switched to db Bankerise
show collections
usedData UserApp
db.usedData.aggregate( [ {
$lookup : {
from: UserApp,
localField:"id",
foreignField: "id", as:"same_id"
}
}])
ReferenceError: UserApp is not defined
And I thing it raises from the fact that I have imported the data Manually using GUI.
I'm missing something here ?