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hperantunes/m101p-hw5.1.js

Last active August 29, 2015 14:15
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m101p-hw5.1.js
db.posts.aggregate([
{$unwind: '$comments'},
{$group: { _id: '$comments.author', comments: { $sum: 1 } }},
{$sort: { comments: -1 }}
])
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