Answers for "Mongodb MapReduce"

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Mongodb MapReduce

>db.collection.mapReduce(
   function() {emit(key,value);},  //map function
   function(key,values) {return reduceFunction}, {   //reduce function
      out: collection,
      query: document,
      sort: document,
      limit: number
   }
)

Posted by: Guest on March-10-2022

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