Created
November 15, 2018 19:18
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MongoDB flatten aggregation & update
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| new_recommended = db.profiles.aggregate([{$unwind: "$recommended"}, {$group: {_id : "$_id", recommended: {$push: "$recommended"}}}]).toArray(); | |
| new_recommended.forEach(function (x) {db.profiles.update({_id: x._id}, {$set: {recommended: x.recommended}})}); |
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