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New posts in aggregation-framework

Check if every element in array matches condition

Converting string to date in mongodb

$unwind empty array

how to $project ObjectId to string value in mongodb aggregate?

Mongodb Aggregation Framework: Does $group use index?

Mongodb sort inner array

Select Group by count and distinct count in same mongodb query

Multiple join conditions using the $lookup operator

Moongoose aggregate $match does not match id's

MongoDB Aggregation: Counting distinct fields

MongoDB aggregation comparison: group(), $group and MapReduce

Get n-th element of an array in MongoDB

Mongoose: how to use aggregate and find together

How to flatten a subdocument into root level in MongoDB?

Group count with MongoDB using aggregation framework

Search on multiple collections in MongoDB

Is it possible to rename _id field after mongo's group aggregation?

MongoDB group by array inner-elements

Mongodb Join on _id field from String to ObjectId

Is Mongodb Aggregation framework faster than map/reduce?