3.9-QueryString&SimpleQueryStrin

Query String Query

• 类似URI Query

POST users/_search
{
  "query": {
    "query_string": {
      "default_field": "name",
      "query": "Ruan AND Yiming"
    }
  }
}

POST users/_search
{
  "query": {
    "query_string": {
      "fields":["name","about"],
      "query": "(Ruan AND Yiming) OR (Java AND Elasticsearch)"
    }
  }
}

Simple Query String Query

POST users/_search
{
  "query": {
    "simple_query_string": {
      "query": "Ruan Yiming",
      "fields": ["name"],
      "default_operator": "AND"
    }
  }
}

• 类似Query Sting,但是会忽略错误的语法,同时只支持部分查询语法

• 不支持 AND OR NOT, 会当作字符处理

• Term 之间默认的关系是OR,可以指定Operator

• 支持部分逻辑

  • +替代AND

  • |替代OR

  • -替代NOT

课程 Demo

• 需导入Movie测试数据，具体参考“2.4-Logstash安装与导入数据”

PUT /users/_doc/1
{
  "name":"Ruan Yiming",
  "about":"java, golang, node, swift, elasticsearch"
}

PUT /users/_doc/2
{
  "name":"Li Yiming",
  "about":"Hadoop"
}


POST users/_search
{
  "query": {
    "query_string": {
      "default_field": "name",
      "query": "Ruan AND Yiming"
    }
  }
}


POST users/_search
{
  "query": {
    "query_string": {
      "fields":["name","about"],
      "query": "(Ruan AND Yiming) OR (Java AND Elasticsearch)"
    }
  }
}


#Simple Query 默认的operator是 Or
POST users/_search
{
  "query": {
    "simple_query_string": {
      "query": "Ruan AND Yiming",
      "fields": ["name"]
    }
  }
}


POST users/_search
{
  "query": {
    "simple_query_string": {
      "query": "Ruan Yiming",
      "fields": ["name"],
      "default_operator": "AND"
    }
  }
}


GET /movies/_search
{
    "profile": true,
    "query":{
        "query_string":{
            "default_field": "title",
            "query": "Beafiful AND Mind"
        }
    }
}


# 多fields
GET /movies/_search
{
    "profile": true,
    "query":{
        "query_string":{
            "fields":[
                "title",
                "year"
            ],
            "query": "2012"
        }
    }
}



GET /movies/_search
{
    "profile":true,
    "query":{
        "simple_query_string":{
            "query":"Beautiful +mind",
            "fields":["title"]
        }
    }
}