node.js - How to get the double quotes arround number typed field from MongoDB aggregation query result? -


scenario: have collection 'people' following documents

       {          "_id" : objectid("512bc95fe835e68f199c8686"),          "name": "david",          "age" : 78        },        { "_id" : objectid("512bc962e835e68f199c8687"),          "name" : "dave",          "age" : 35        }

when query using following code node.js 

db.articles.aggregate(     { $match : { author : "dave" } } );

the output like:

       { "_id" : objectid("512bc962e835e68f199c8687"),          "name" : "dave",          "age" : 35        }

issues: above sample of actual scenario, want 'age' filed value embedded in double quotes i.e above quoted example should "age": "35".

that full resultant document should following:

{ "_id" : objectid("512bc962e835e68f199c8687"),      "name" : "dave",      "age" : "35"    }

consider have huge number of documents how efficiently can achieve same desired output?

question: can out bright , efficient way achieve same?


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