elasticsearch - 用于 “field does not exist OR field is equal to true”的Elasticsearch过滤器

Question

我有以下格式的搜索查询:

{
  "query": {
    "function_score": {
      "query": {
        "bool": {
          "must": {
            "simple_query_string": {
              "query": "*",
              "fields": [
                "field1^10",
                "field2^3"
              ]
            }
          },
          "filter": [
            {
              "terms": {
                "field3": [
                  "val1",
                  "val2"
                ]
              }
            },
            {
              "terms": {
                "field4": [
                  "val4"
                ]
              }
            },
            {
              "term": {
                "field5": true
              }
            }
          ]
        }
      },
      "functions": [
        {
          "gauss": {
            "field1": {
              "scale": "31d"
            }
          },
          "weight": 5
        }
      ],
      "score_mode": "sum",
      "boost_mode": "multiply"
    }
  },
  "size": 10
}

现在，我想修改 field5上的过滤器，以使其过滤将field5设置为 true或未将 field5索引的值。我想要两种结果，并且只想排除那些 field5设置为false的结果。

我已经尝试在 must_not中将 should与 filter进行各种组合，但是还无法使查询正常工作。谢谢您的帮助!

我正在使用Elasticsearch 6.5.1版。

Answer 1

鉴于您特别提供的信息

I want both kinds in the results and want to exclude only the ones which have field5 set to false.

查询应如下所示:

{
  "query": {
    "function_score": {
      "query": {
        "bool": {
          "must": {
            "simple_query_string": {
              "query": "*",
              "fields": [
                "field1^10",
                "field2^3"
              ]
            }
          },
          "must_not": [
            {
              "term": {
                "field5": {
                  "value": false
                }
              }
            }
          ], 
          "filter": [
            {
              "terms": {
                "field3": [
                  "val1",
                  "val2"
                ]
              }
            },
            {
              "terms": {
                "field4": [
                  "val4"
                ]
              }
            }
          ]
        }
      },
      "functions": [
        {
          "gauss": {
            "field1": {
              "scale": "31d"
            }
          },
          "weight": 5
        }
      ],
      "score_mode": "sum",
      "boost_mode": "multiply"
    }
  },
  "size": 10
}

我添加了must_not-clause来排除所有具有field5等于false的文档。