{
  "schema": {
    "bsonType": "object",
    "description": "存储统计汇总的会话数据包括不限于设备/用户的数量、访问量、活跃度（日活、周活、月活）、留存率（日留存、周留存、月留存）、跳出率、访问时长等数据",
    "required": [],
    "permission": {
      "read": false,
      "create": false,
      "update": false,
      "delete": false
    },
    "properties": {
      "_id": {
        "description": "ID，系统自动生成"
      },
      "appid": {
        "bsonType": "string",
        "description": "应用ID，对应opendb-app-list.appid",
        "foreignKey": "opendb-app-list.appid"
      },
      "platform_id": {
        "bsonType": "string",
        "description": "应用平台ID，对应uni-stat-app-platforms._id",
        "foreignKey": "uni-stat-app-platforms._id"
      },
      "channel_id": {
        "bsonType": "string",
        "description": "渠道/场景值ID，对应uni-stat-app-channels._id",
        "foreignKey": "uni-stat-app-channels._id"
      },
      "version_id": {
        "bsonType": "string",
        "description": "应用版本ID，对应opendb-app-versions._id",
        "foreignKey": "opendb-app-versions._id"
      },
      "total_users": {
        "bsonType": "int",
        "description": "历史累计总用户数"
      },
      "new_user_count": {
        "bsonType": "int",
        "description": "本时间段新增用户数"
      },
      "active_user_count": {
        "bsonType": "int",
        "description": "本时间段活跃用户数"
      },
      "total_devices": {
        "bsonType": "int",
        "description": "历史累计总设备数"
      },
      "new_device_count": {
        "bsonType": "int",
        "description": "本时间段新增设备数"
      },
      "user_session_times": {
        "bsonType": "int",
        "description": "本时间段用户的会话次数"
      },
      "active_device_count": {
        "bsonType": "int",
        "description": "本时间段活跃设备数"
      },
      "app_launch_count": {
        "bsonType": "int",
        "description": "本时间段App启动或从后台切到前台的次数"
      },
      "error_count": {
        "bsonType": "int",
        "description": "本时间段报错次数"
      },
      "duration": {
        "bsonType": "int",
        "description": "时间段内，所有会话访问总时长，单位秒"
      },
      "user_duration": {
        "bsonType": "int",
        "description": "本次登录用户的会话总时长，单位为秒"
      },
      "avg_device_session_time": {
        "bsonType": "int",
        "description": "设备的次均停留时长,单位秒"
      },
      "avg_device_time": {
        "bsonType": "int",
        "defaultValue": "设均停留时长(平均每台设备的停留时长),单位秒"
      },
      "avg_user_session_time": {
        "bsonType": "int",
        "description": "用户的次均停留时长,单位秒"
      },
      "avg_user_time": {
        "bsonType": "int",
        "defaultValue": "人均停留时长(平均每个登录用户的停留时长),单位秒"
      },
      "bounce_times": {
        "bsonType": "int",
        "description": "跳出次数"
      },
      "bounce_rate": {
        "bsonType": "double",
        "description": "跳出率"
      },
      "retention": {
        "bsonType": "object",
        "description": "留存信息",
        "properties": {
          "active_user": {
            "bsonType": "object",
            "description": "活跃用户留存信息"
          },
          "new_user": {
            "bsonType": "object",
            "description": "新增用户留存信息"
          },
          "active_device": {
            "bsonType": "object",
            "description": "活跃设备留存信息"
          },
          "new_device": {
            "bsonType": "object",
            "description": "新增设备留存信息"
          }
        }
      },
      "dimension": {
        "bsonType": "string",
        "description": "统计范围 day:按天统计，hour:按小时统计",
        "enum": [{
          "text": "月",
          "value": "month"
        }, {
          "text": "周",
          "value": "week"
        }, {
          "text": "天",
          "value": "day"
        }, {
          "text": "小时",
          "value": "hour"
        }]
      },
      "stat_date": {
        "bsonType": "int",
        "description": "统计日期，格式yyyymmdd，例:20211201"
      },
      "start_time": {
        "bsonType": "timestamp",
        "description": "开始时间"
      },
      "end_time": {
        "bsonType": "timestamp",
        "description": "结束时间"
      }
    }
  },
  "index": [{
    "IndexName": "index_search_time",
    "MgoKeySchema": {
      "MgoIndexKeys": [{
        "Name": "start_time",
        "Direction": "1"
      }],
      "MgoIsUnique": false
    }
  }, {
    "IndexName": "index_search_normal",
    "MgoKeySchema": {
      "MgoIndexKeys": [{
        "Name": "appid",
        "Direction": "1"
      }, {
        "Name": "version_id",
        "Direction": "1"
      }, {
        "Name": "platform_id",
        "Direction": "1"
      }, {
        "Name": "channel_id",
        "Direction": "1"
      }, {
        "Name": "dimension",
        "Direction": "1"
      }, {
        "Name": "start_time",
        "Direction": "1"
      }],
      "MgoIsUnique": false
    }
  }]
}