Clash Royale CLAN TAG#URR8PPP

mongoDB - find first x documents, where aggregated sum of their fields exceeds certain value

I have a mongoDB collection of documents like this:


"_id": 1,
"size": 10,
"name": "ABCD"



I would like to:

I have briefly looked into $redact stage of aggregation framework, but I can't figure out whether I can store the cumulative sum outside the document. What would be the best approach to solve this problem?

sort by name and get documents whose size value >=100. What else do you want to do (regarding whose sum are you talking about).
– Helping hand
1 hour ago

db.collection.find( "size": "$gte": 100 ).sort( name: 1 )
– Anthony Winzlet
1 hour ago

db.collection.find( "size": "$gte": 100 ).sort( name: 1 )

@Helpinghand it's the cumulative size of documents that I'm talking about. Let me clarify the question
– Tony Sepia
just now

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