Get one most recent comment for each post in mongodb -

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i have 2 collections in mongodb, 1 posts , 1 comments. best approach 1 recent comment each post? i'm looking similar solution mongodb: http://www.xaprb.com/blog/2006/12/07/how-to-select-the-firstleastmax-row-per-group-in-sql/

you should able aggregation framework combining $group $max.

i give exact solution, can't unless give example of data.

by way: proper way structure data in mongodb put comments sub-array of posts.


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