[{_id:ObjectId("630680a764a8eb1364c4f250"),question_type:"MULTIPLE CHOICE",published:true,status:"PUBLISHED"},{_id:ObjectId("630680a764a8eb1364c4f251"),question_type:"MULTIPLE CHOICE",published:true,status:"PUBLISHED",},{_id:ObjectId("630680a764a8eb1364c4f252"),question_type:"MULTIPLE CHOICE",published:true,status:"PUBLISHED",}]

db.collection.aggregate([{$setWindowFields:{sortBy:{_id:1},output:{serial:{$sum:1,window:{documents:["unbounded","current"]}}}}},{$merge:{into:"collection"}}])