ES 嵌套字段、多字段去重

cardinality  去重

body={
                    "aggs": {
                        "threat_name_aggs": {
                        "cardinality": {
                            "field": "alert.threat_name.keyword"
                        }
                        }
                    },
                    "collapse":{
                        "field":"alert.threat_name.keyword",
                        "inner_hits": {
                        "name": "top_rated",
                        "size": 1
                        }
                    },
                    "size": 1
                    }

 search_result = self.es_client.search(body=body, index=index,filter_path=["hits.hits._source"],_source_includes=["alert.threat_name"])

 聚合  

"aggs": {
                    "threat_name_aggs": {
                    "terms": {
                        "field": "alert.threat_name.keyword",
                        "size": 100
                    }
                    },
                    "severity_aggs": {
                    "terms": {
                        "field": "alert.severity.keyword",
                        "size": 100
                    }
                    },
                    "alarm_type_aggs": {
                    "terms": {
                        "field": "alert.alarm_type.keyword",
                        "size": 1000
                    }
                    }
                }

折叠
                 "collapse":{
        "field":"alert.severity.keyword"
    },             "collapse":{
        "field":"alert.alarm_type.keyword"
    },             "collapse":{
        "field":"alert.threat_name.keyword"
    },             "collapse":{
        "field":"alert.level_2_alarm_type.keyword"
    },
                "size": 1000