elasticsearch nested嵌套查询

关于es查询dsl的filter与must，term与match的区别

关于es查询dsl的filter与must，term与match的区别_PacosonSWJTU的博客-CSDN博客_es must和filter

嵌套对象查询

嵌套对象查询 | Elasticsearch: 权威指南 | Elastic

多条件嵌套查询：elasticSearch多条件高级检索语句，包含多个must、must_not、should嵌套示例，并考虑nested对象的特殊检索 - 近朱朱者赤 - 博客园

创建索引

put localhost:9200/pdi_cust ，注意 PUB_CUST_LABEL 字段分词了。 es7 不支持type ，所以无需指定type。

{   "mappings"  :{      "properties":{"RCRD_ID":{"type":"keyword"}, "BUSI_CODE":{"type":"keyword"}, "STATE":{"type":"keyword"}, "LOANS":{"type":"nested", "properties" :{"LOAN_NUM":{"type":"keyword"}, "PUB_CUST_LABEL":{"type":"text"}, "DATA_SRC":{"type":"keyword"}, "CUST_NUM": {"type":"keyword"}, "LOAN_BAL_SUM":{"type":"double"}, "OVD_MONEY_SUM": {"type": "double"}}}}}
}

嵌套查询

使用 filter+term实现精确匹配不计分查询

// dsl
{"_source":["RCRD_ID", "STATE", "BUSI_CODE"], "query":{"bool":{"filter":[{"term":{"STATE":"PDOS"}               } , {"nested":{"path":"LOANS", "query":{"bool":{"filter":[{"term": {"LOANS.LOAN_NUM": "LOAN_NUM_01"}}]                                }},  "inner_hits": {                            }}                }]}                 }
}// 查询结果
{"took": 8,"timed_out": false,"_shards": {"total": 1,"successful": 1,"skipped": 0,"failed": 0},"hits": {"total": {"value": 1,"relation": "eq"},"max_score": 0.0,"hits": [{"_index": "pdi_cust","_type": "_doc","_id": "tr_rd_01","_score": 0.0,"_source": {"RCRD_ID": "tr_rd_01","STATE": "PDOS","BUSI_CODE": "pdi"},"inner_hits": {"LOANS": {"hits": {"total": {"value": 1,"relation": "eq"},"max_score": 0.0,"hits": [{"_index": "pdi_cust","_type": "_doc","_id": "tr_rd_01","_nested": {"field": "LOANS","offset": 0},"_score": 0.0,"_source": {"CUST_NUM": "CUST_NUM_01","DATA_SRC": "VALD","LOAN_BAL_SUM": "1111","LOAN_NUM": "LOAN_NUM_01","OVD_MONEY_SUM": "1111","PUB_CUST_LABEL": "张三 李四  王五"}}]}}}}]}
}

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