【备忘】es统计各个平台的每日活跃数量

{
    "query": {
        "bool": {
            "must": [
                {
                    "range": {
                        "unixtime": {
                            "gt": "1631548800000",
                            "lt": "1631635200000"
                        }
                    }
                },
                {
                    "term": {
                        "operation":"login"
                    }
                },
                {
                    "term": {
                        "num":1
                    }
                }
            ],
            "must_not": [],
            "should": []
        }
    },
    "from": 0,
    "size": 0,
    "sort": [],
    "aggs": {
        "total": {
            "terms": {
                "field": "platform_name",
                "size": 1000000
            },
            "aggs": {
                "2": {
                    "date_histogram": {
                        "field": "@timestamp",
                        "interval": "1d",//按天分桶统计
                        "time_zone": "Asia/Shanghai",
                        "min_doc_count": 0
                    }
                }
            }
        }
    }
}