{ "_id" : ObjectId("51ee3966e4b056fe8f074f48"), "userid" : "66", "clientid" : "88", "deviceid" : "22", "timestamp" : "1374214822000"}
{ "_id" : ObjectId("51ee507ae4b056fe8f074f4a"), "userid" : "66", "clientid" : "88", "deviceid" : "22", "timestamp" : "1374214822000"}
{ "_id" : ObjectId("51ee51fee4b056fe8f074f4b"), "userid" : "66", "clientid" : "88", "deviceid" : "22", "timestamp" : "1374214822000"}
Как удалить несколько идентификаторов в mongodb?