how to override the numberlong() when mongodb output writes documents in mongodb

Question

I am creating JSON docs in MongoDB by using MongoDB o/p step in Pentaho PDI kettle with following structure.

Expected output:

{
"lan_id" : -1,
"st_id" : 051
}

However I am getting following output as MongoDB is by default is creating NumberLong() wrapper around the numbers -1 and 051. I don't want this and I want the above o/p.

{
"lan_id" : NumberLong(-1),
"st_id" : NumberLong(051)
}

Answer 1

I faced the similar issue. However I am yet to ascertain the main reason for this ,since I was running out of time. As a temporal solution I used select values step to change the dataypes to Number and it worked.

I would be thankful for letting me know the actual cause if you get to learn it.