is there any way to add values via aggregation like db.insert_one
x = db.aggregate([{
"$addFields": {
"chat_id": -10013345566,
}
}])
i tried this but this code return nothing and values are not updated
i wanna add the values via aggregation cuz aggregation is way faster than others
sample document :
{"_id": 123 , "chat_id" : 125}
{"_id": 234, "chat_id" : 1325}
{"_id": 1323 , "chat_id" : 335}
expected output :
alternative to db.insert_one() in mongodb aggregation
You have to make use of $merge stage to save output of the aggregation to the collection.
Note: Be very very careful when you use
$mergestage as you can accidentally replace the entire document in your collection. Go through the complete documentation of this stage before using it.
db.collection.aggregate([
{
"$match": {
"_id": 123
}
},
{
"$addFields": {
"chat_id": -10013345566,
}
},
{
"$merge": {
"into": "collection", // <- Collection Name
"on": "_id", // <- Merge operation match key
"whenMatched": "merge" // <- Operation to perform when matched
}
},
])