Elasticsearch : IN operator query with query_string

Question

我想将记录与查询字符串进行匹配，因此我编写了以下运行良好的查询:

{
  "query": {
    "query_string": {
      "fields": ["rollno","name"],
        "query": "*John*"
      }
  }
}

现在，除了匹配字段之外，我还想对另一个字段实现IN查询。我试过this查询，如:

{
"query": {
    "query_string": {
        "fields": ["rollno", "name"],
        "query": "*John*"
    },
    "match": {
        "majorSubject": ["Biology", "Chemistry"]
    }
  }
}

我得到的只是search_parse_exception。

如何进行IN操作？

Answer 1

您需要使用 bool/must 查询才能组合两个子查询:

{
  "query": {
    "bool": {
      "must": [
        {
          "query_string": {
            "fields": [
              "rollno",
              "name"
            ],
            "query": "*John*"
          }
        },
        {
          "terms": {
            "majorSubject": [
              "Biology",
              "Chemistry"
            ]
          }
        }
      ]
    }
  }
}

如果 majorSubject 字段是经过分析的字符串，请改用小写术语:

{
  "query": {
    "bool": {
      "must": [
        {
          "query_string": {
            "fields": [
              "rollno",
              "name"
            ],
            "query": "*John*"
          }
        },
        {
          "terms": {
            "majorSubject": [
              "biology",
              "chemistry"
            ]
          }
        }
      ]
    }
  }
}