Template
single collection
multiple collections
mgodatagen
update
indexe
explain
Stage
Database
bson
mgodatagen
[{maxspeed:27.264,minspeed:11.5,meanspeed:14.407407407}]
Query
db.collection.aggregate([{$project:{maxspeed:{$round:["$maxspeed",0]},minspeed:{$round:["$minspeed",0]},meanspeed:{$round:["$meanspeed",0]}}}])
Result