danielbellido
danielbellido
/ homework5.js
Created
June 24, 2014 19:10
— forked from mrmarcondes/homework5.js
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| // homework 5.1 | |
| db.posts.aggregate([ | |
| {$project: {"_id": 0, | |
| "comments.author": 1 | |
| }}, | |
| {$unwind: "$comments"}, | |
| {$group: {"_id": "$comments.author", | |
| sum: {"$sum": 1} | |
| }}, | |
| {$sort: {"sum": -1}}, |