Template
single collection
multiple collections
mgodatagen
update
indexe
explain
Stage
Database
bson
mgodatagen
[{"state":"Wyoming","date":"2020-05-23","cases":23},{"state":"Wyoming","date":"2020-03-23","cases":23}]
Query
db.collection.aggregate([{"$match":{"state":"Wyoming","date":"2020-05-23"}}])
Result