数组中的 Elastic Search "must"

Question

我是 Elastic Search 的新手。

我已经在 elasticsearch 中索引了下一个对象：

                "doc": [
                    {
                        "partes": [
                            {
                                "algo": [
                                    {
                                        "Category": "Therapeutic or Preventive Procedure",
                                        "Neg": "false",
                                        "CandidatePreferred": "Obstetric Surgical Procedures",
                                        "CandidateScore": "1000",
                                        "CandidateMatched": "Obstetric Surgical",
                                        "Phrase": "OBSTETRIC SURGICAL",
                                        "CUI": "C0038906"
                                    }
                                ]
                            }
                        ]
                    },
                    {
                        "partes": [
                            {
                                "algo": [
                                    {
                                        "Category": "Intellectual Product",
                                        "Neg": "false",
                                        "CandidatePreferred": "Given name",
                                        "CandidateScore": "790",
                                        "CandidateMatched": "given",
                                        "Phrase": "given of discharge",
                                        "CUI": "C3244317"
                                    },
                                    {
                                        "Category": "Body Substance",
                                        "Neg": "false",
                                        "CandidatePreferred": "Discharge, body substance",
                                        "CandidateScore": "790",
                                        "CandidateMatched": "Discharge",
                                        "Phrase": "given of discharge",
                                        "CUI": "C2926602"
                                    }
                                ]
                            },
                            {
                                "algo": [
                                    {
                                        "Category": "Health Care Activity",
                                        "Neg": "false",
                                        "CandidatePreferred": "Patient Discharge",
                                        "CandidateScore": "790",
                                        "CandidateMatched": "Discharge",
                                        "Phrase": "given of discharge",
                                        "CUI": "C0030685"
                                    },
                                    {
                                        "Category": "Intellectual Product",
                                        "Neg": "false",
                                        "CandidatePreferred": "Given name",
                                        "CandidateScore": "790",
                                        "CandidateMatched": "given",
                                        "Phrase": "given of discharge",
                                        "CUI": "C3244317"
                                    }
                                ]
                            }
                        ]
                    }
                ]
            }
        }

我的 objective 是获取我在同一元素中有两个 CUI 的元素 algo，即有一个 algo 在 doc 中有两个 CUI：C3244317 和 C2926602.

我正在尝试进行下一次搜索：

{
    "query": {        
        "nested": {
            "path": "doc",
            "query": {
                "nested":{
                    "path":"doc.partes",
                    "query": {
                        "nested": {
                            "path":"doc.partes.algo",
                            "query": {
                                "bool": {
                                    "must": [
                                        { "term": { "doc.partes.algo.CUI": "C3244317" }},
                                        { "term": { "doc.partes.algo.CUI": "C2926602" }}
                                    ]

                                }
                            }
                        }
                    }
                }
            }
        }
    }
}

但是我还没有得到任何结果:

{
    "took": 5,
    "timed_out": false,
    "_shards": {
        "total": 5,
        "successful": 5,
        "failed": 0
    },
    "hits": {
        "total": 0,
        "max_score": null,
        "hits": []
    }
}

我得到的结果是 should 而不是 must，但这不是我一直在寻找的行为。

Answer 1

默认 standard analyzer 删除大部分标点符号，将文本分解为单个单词，并将它们小写。

所以 C3244317 可能被索引为 c3244317，即小写 'c'。

您不需要这么大的查询。这应该可以正常工作：

{  
   "query":{  
      "bool":{  
         "must":[  
            {  
               "term":{  
                  "doc.partes.algo.CUI":"c3244317"
               }
            },
            {  
               "term":{  
                  "doc.partes.algo.CUI":"c2926602"
               }
            }
         ]
      }
   }
}