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New posts in aggregation-framework

mongodb aggregation project objectId with concat

MongoDB Aggregation Error "each item in the pipeline must be a document"

Why mongo doesn't allow to use a $facet stage inside another $facet?

Concat String by Group

How to use graph lookup aggregation in a embedded array document

lookup with pipeline and geoIntersects that use let variable

How do I count multiple keys in the same MongoDB aggregation $group query?

Finding highest value from sub-arrays in documents

MongoDB query : $near with aggregation

How to check if sub-field exists and is not null in mongodb aggregation?

Aggregation $lookup with $let is not working

How to perform case-insensitive aggregation grouping in MongoDb?

How create a new array field with the aggregate framework

Project nested embedded document in mongodb aggregate

How to remove only one or two fields from documents in mongodb?

Mongoose Virtuals in MongoDB Aggregate

mongodb: query for the time period between two date fields

How to do nested $lookup search in MongoDB?

Find whether someone got a birthday in the next 30 days with mongo

Aggregation pipeline and indexes