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  1. The aggregation framework provides the ability ... $group: Groups documents together for the purpose of calculating aggregate ... $project (aggregation) $match ...
    docs.mongodb.org/manual/reference/​aggregation - Cached
  2. The MongoDB aggregation framework provides a means to calculate aggregated values without having to use map-reduce. ... $project $unwind $group. New in version 2.4.
    docs.mongodb.org/manual/core/​aggregation - Cached
  3. ... MongoDB is introducing a new aggregation framework that will make it ... project : { _id ... when combined with $group. $group groups ...
    blog.mongodb.org/post/16015854270 - Cached
  4. I am trying to use the $project operator to reshape this schema a little bit before I start passing my ... MongoDB Aggregation Framework $group using nested ...
    stackoverflow.com/.../13223400/mongodb-​aggregate-project - Cached
  5. Stack Overflow is a question and answer site for professional and enthusiast programmers. It\'s 100% free, no registration required.
    stackoverflow.com/questions/15285795/​mongodb-aggregation... - Cached
  6. MongoDB (from \"humongous\") is an open-source document database, and the leading NoSQL database. Get Involved; ... Flexible aggregation and data processing.
    www.mongodb.org - Cached
  7. The framework includes the aggregation operators $project, $unwind, $group, ... The MongoDB 2.2 Aggregation Framework is a powerful mechanism that can help you answer ...
    blog.mongolab.com/2012/07/aggregation-​example - Cached
  8. The MongoDB aggregation framework is a relatively new addition to the platform. Using this framework, you can group, ... Project (Pro-JECT), means to ...
    architects.dzone.com/articles/using-​mongodb-aggregation - Cached
  9. The main benefit of the aggregation framework is that MongoDB executes it without the overhead of the JavaScript ... Here is a combination of $group and $project:
    architects.dzone.com/articles/comparing-​mongodb-new - Cached
  10. This library uses a declarative pipe-line notation to support features such as SQL-like group by ... to MongoDB’s Aggregation Framework. ... project, a vibrant ...
    www.infoq.com/news/2012/02/MongoDB-​Aggregation - Cached