Elasticsearch查询字符串查询不等于？

Question

通常在elasticsearch中使用query_string查询,我可以这样做:

name:"Fred"

我想找到名字不等于Fred的所有文件.那个正确的语法是什么？我试过了:

name!="Fred"

虽然它返回0个文件.

Answer 1

您应该使用bool查询和must_not语句

{
  "query": {
    "bool" : {
      "must_not" : {
        "term" : {
          "name" : "Fred"
        }
      }
    }
  }
}

Answer 2

您需要使用NOT运算符,如下所示:

!(name:"Fred")

要么

NOT (name:"Fred")

Answer 3

您还可以结合使用must和must_not。就像名称为Ajit且状态未排队的pull docs。

    "query": {
        "bool": {
            "must": [
                {
                    "match": {
                        "name": "Ajit"
                    }
                }
            ],
            "must_not": [
                {enter code here
                    "match": {
                        "status": "queued"
                    }
                }
            ]
        }
    }
}```

Answer 4

and、or 和 not 过滤器

对于“与”查询：

{
    "filtered" : {
        "query" : {
            "term" : { "name.first" : "shay" }
        },
        "filter" : {
            "and" : {
                "filters" : [
                    {
                        "term" : { "name.first" : "something" }
                    },
                    {
                        "term" : { "name.first" : "other" }
                    }
                ]
            }
        }
    }
}

对于“或”查询：

{
    "filtered" : {
        "query" : {
            "term" : { "name.first" : "shay" }
        },
        "filter" : {
            "or" : {
                "filters" : [
                    {
                        "term" : { "name.first" : "something" }
                    },
                    {
                        "term" : { "name.first" : "other" }
                    }
                ]
            }
        }
    }
}

对于“非”查询：

{
    "filtered" : {
        "query" : {
            "term" : { "name.first" : "shay" }
        },
        "filter" : {
            "not" : {
                "filter" :  {
                    "term" : { "name.first" : "someting" }
                }
            }
        }
    }
}