Created
May 18, 2016 12:26
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How many times will be called reduce function for collection with 1 object?
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| db.for_map_reduce.insert({name: 'Jane'}) | |
| db.for_map_reduce.mapReduce( | |
| function() { | |
| emit(null, this.name); | |
| }, | |
| function(key, names) { | |
| return names.length; | |
| }, | |
| { | |
| out: { | |
| inline: 1 | |
| }, | |
| query: {}, | |
| finalize: function(key, value) { | |
| return value; | |
| } | |
| } | |
| ); |
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