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Backwards Compatibility:
Fully Compatible
Operating System:
ALL
Steps To Reproduce:
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db.coll.insert({_id: 1, user: {id: 1016, name: "jack"}}) db.coll.insert({_id: 2, user: {id: 1017, name: "rose"}}) db.getCollection("coll").group({ key:{'user.id':1}, reduce:function(doc,value){ value.user = doc.user; value.order_count++; return value; }, initial:{ order_count:0,user:0 }, finalize:function(res){ } })
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db.coll.insert({_id: 1, user: {id: 1016, name: "jack" }}) db.coll.insert({_id: 2, user: {id: 1017, name: "rose" }}) db.getCollection( "coll" ).group({ key:{ 'user.id' :1}, reduce: function (doc,value){ value.user = doc.user; value.order_count++; return value; }, initial:{ order_count:0,user:0 }, finalize: function (res){ } })
Sprint:
Platforms 12 (04/01/16)

group failed : Command failed with error 139: 'Failure to enumerate object'

3.2 not work, but 3.0 works

duplicates

SERVER-23191 Group command needs to make a copy of the obj it passes to JS

Participants:: Jonathan Reams, Mira Carey, Ramon Fernandez Marina, Zhang Youdong