1、普通match如何转换为term+should

  1. {
  2.     "match": { "title": "java elasticsearch"}
  3. }

使用诸如上面的match query进行多值搜索的时候，es会在底层自动将这个match query转换为bool的语法
bool should，指定多个搜索词，同时使用term query

{
  "bool": {
    "should": [
      { "term": { "title": "java" }},
      { "term": { "title": "elasticsearch"   }}
    ]
  }
}

2、and match如何转换为term+must

{
    "match": {
        "title": {
            "query":    "java elasticsearch",
            "operator": "and"
        }
    }
}

{
  "bool": {
    "must": [
      { "term": { "title": "java" }},
      { "term": { "title": "elasticsearch"   }}
    ]
  }
}

3、minimum_should_match如何转换

{
    "match": {
        "title": {
            "query":                "java elasticsearch hadoop spark",
            "minimum_should_match": "75%"
        }
    }
}

{
  "bool": {
    "should": [
      { "term": { "title": "java" }},
      { "term": { "title": "elasticsearch"   }},
      { "term": { "title": "hadoop" }},
      { "term": { "title": "spark" }}
    ],
    "minimum_should_match": 3 
  }
}

上一讲，为啥要讲解两种实现multi-value搜索的方式呢？实际上，就是给这一讲进行铺垫的。match query --> bool + term。