db.getCollection('dataOperateLog').aggregate([ {$match:{operateType:'LOGIN',operateTime:{'$gt':ISODate("2017-01-01T00:00:00.000Z")}}}, {$group: { _id: { "params": "$params" }, count: {$sum: 1}} }, {$sort: {"count": -1}} ]);
mongodb分组统计
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转载自chenzng.iteye.com/blog/2373991
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