{
    "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":"start_time",
            "MgoKeySchema":{
                "MgoIndexKeys":[
                    {
                        "Name":"start_time",
                        "Direction":"1"
                    }
                ],
                "MgoIsUnique":false
            }
        },
        {
            "IndexName":"appid",
            "MgoKeySchema":{
                "MgoIndexKeys":[
                    {
                        "Name":"appid",
                        "Direction":"1"
                    }
                ],
                "MgoIsUnique":false
            }
        },
        {
            "IndexName":"version_id",
            "MgoKeySchema":{
                "MgoIndexKeys":[
                    {
                        "Name":"version_id",
                        "Direction":"1"
                    }
                ],
                "MgoIsUnique":false
            }
        },
        {
            "IndexName":"platform_id",
            "MgoKeySchema":{
                "MgoIndexKeys":[
                    {
                        "Name":"platform_id",
                        "Direction":"1"
                    }
                ],
                "MgoIsUnique":false
            }
        },
        {
            "IndexName":"channel_id",
            "MgoKeySchema":{
                "MgoIndexKeys":[
                    {
                        "Name":"channel_id",
                        "Direction":"1"
                    }
                ],
                "MgoIsUnique":false
            }
        },
        {
            "IndexName":"dimension",
            "MgoKeySchema":{
                "MgoIndexKeys":[
                    {
                        "Name":"dimension",
                        "Direction":"1"
                    }
                ],
                "MgoIsUnique":false
            }
        }
    ]
}