{ "namespace": "mobvista.dmp.device.bean", "type": "record", "name": "OdsDmpDeviceTotal", "separatorChar": "\t", "fields": [ { "name": "device_id", "type": "string", "doc": "device id" }, { "name": "id_type", "type": "string", "doc": "device type" }, { "name": "country", "type": "string", "doc": "country" }, { "name": "last_req_day", "type": "string", "doc": "last request day" } ] }