MapReduce中的Golang GlobalSign mgo查询
import "github.com/globalsign/mgo"
job := &mgo.MapReduce{
Map: "function() { emit(this.name, 1) }",
Reduce: "function(key, values) { return Array.sum(values) }",
Out: "res",
}
_, err = c.Find(nil).MapReduce(job, nil)
How to add 'query' to the above golang mgo mapreduce ?
Ref:
https://docs.mongodb.com/manual/core/map-reduce/ https://godoc.org/github.com/globalsign/mgo#MapReduce
duanfu3597
2019/07/17 12:44- mapreduce
- mongodb
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