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Questions tagged aggregation-framework

11 questions

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10
votes
2
answers

Aggregation pipeline and indexes

mongodb indexing aggregation-framework
asked 2013-03-25T03:05:25.817
46
votes
4
answers

Mongodb sort inner array

mongodb aggregation-framework
asked 2013-03-13T14:28:33.057
14
votes
3
answers

Is there a way to display timestamp in unix format to ISODate?

mongodb mongodb-query aggregation-framework
asked 2013-02-23T15:07:02.843
20
votes
3
answers

new Date() in aggregate $project

mongodb aggregation-framework
asked 2013-02-20T20:14:44.057
178
votes
10
answers

mongodb count num of distinct values per field/key

mongodb mongodb-query aggregation-framework
asked 2013-02-17T18:27:46.900
24
votes
2
answers

MongoDB : aggregation framework : $match between fields

mongodb aggregation-framework
asked 2013-01-24T12:24:30.423
22
votes
2
answers

Aggregate query with where condition

mongodb datetime aggregation-framework
asked 2012-11-08T17:36:06.037
45
votes
2
answers

Group count with MongoDB using aggregation framework

mongodb aggregation-framework
asked 2012-11-05T20:42:27.513
22
votes
3
answers

How do I use aggregation operators in a $match in MongoDB (for example $year or $dayOfMonth)?

mongodb aggregation-framework
asked 2012-10-02T16:35:10.183
13
votes
2
answers

Mongodb Aggregation : How to return only matching elements of an array

mongodb aggregation-framework
asked 2012-09-06T09:27:26.837
48
votes
3
answers

Get n-th element of an array in MongoDB

mongodb mongodb-query aggregation-framework
asked 2011-08-28T19:14:47.100