Template
single collection
multiple collections
mgodatagen
update
indexe
explain
Stage
Database
bson
mgodatagen
[{"key":[87,88]},{"key":[88,89]},{"key":[86,90]},{"key":[93,89,71]}]
Query
db.collection.aggregate([{$facet:{query1:[{$match:{"key":{$gte:88}}}],query2:[{$match:{"key":{"$not":{$lt:88}}}}]}}])
Result