Elasticsearch Query DSL

PUT test_search_index
{
  "settings": {
    "number_of_shards": 5,
    "number_of_replicas": 1
  }
}

POST test_search_index/doc/_bulk
{"index":{"_id":"1"}}
{"username":"alfred way","job":"java engineer","age":18,"birth":"1992-01-02","isMarried":false}
{"index":{"_id":"2"}}
{"username":"alfred","job":"java senior engineer and java specialist","age":28,"birth":"1980-05-07","isMarried":true}
{"index":{"_id":"3"}}
{"username":"lee","job":"java and ruby engineer","age":22,"birth":"1985-08-07","isMarried":false}
{"index":{"_id":"4"}}
{"username":"alfred junior way","job":"ruby engineer","age":23,"birth":"1989-08-07","isMarried":false}

# match

GET test_search_index/doc/_search
{
  "query": {
    "match": {
      "username": "alfred way"
    }
  }
}

GET test_search_index/doc/_search
{
  "profile": "true",
  "query": {
    "match": {
      "username": "alfred way"
    }
  }
}

GET test_search_index/doc/_search
{
  "query": {
    "match": {
      "username": {
        "query": "alfred way",
        "operator": "and"
      }
    }
  }
}


GET test_search_index/_search
{
  "query": {
    "match": {
      "username": {
        "query": "alfred way",
        "minimum_should_match": 2
      }
    }
  }
}

GET test_search_index/_search
{
  "query": {
    "match": {
      "job": {
        "query": "java ruby engineer",
        "minimum_should_match": 3
      }
    }
  }
}

# match_phrase

GET test_search_index/_search
{
  "query": {
    "match_phrase": {
      "job": "java engineer"
    }
  }
}

GET test_search_index/_search
{
  "query": {
    "match_phrase": {
      "job": {
        "query": "java engineer",
        "slop": 2
      }
    }
  }
}

# query string

GET test_search_index/_search
{
  "query": {
    "query_string": {
      "default_field": "username",
      "query": "alfred AND way"
    }
  }
}

GET test_search_index/_search
{
  "query": {
    "query_string": {
      "fields": ["username","job"],
      "query": "alfred OR (java AND ruby)"
    }
  }
}


# simple query string

GET test_search_index/_search
{
  "query": {
    "simple_query_string": {
      "query": "alfred +way",
      "fields": ["username"]
    }
  }
}


# term query

GET test_search_index/_search
{
  "query": {
    "term": {
      "username": "alfred"
    }
  }
}

GET test_search_index/_search
{
  "query": {
    "term": {
      "username": "alfred way"
    }
  }
}

GET test_search_index/_search
{
  "query": {
    "terms": {
      "username": [
        "alfred",
        "way"
      ]
    }
  }
}


# range query

GET test_search_index/_search
{
  "query": {
    "range": {
      "age": {
        "gte": 10,
        "lte": 30
      }
    }
  }
}

GET test_search_index/_search
{
  "query": {
    "range": {
      "birth": {
        "gte": "1990-01-01"
      }
    }
  }
}


GET test_search_index/_search
{
  "query": {
    "range": {
      "birth": {
        "gte": "now-30y"
      }
    }
  }
}

GET test_search_index/_search
{
  "query": {
    "range": {
      "birth": {
        "gte": "2010||-20y"
      }
    }
  }
}


# constant score

GET test_search_index/_search
{
  "query": {
    "constant_score": {
      "filter": {
        "match": {
          "username": "alfred"
        }
      }
    }
  }
}

# bool query

GET test_search_index/_search
{
  "query": {
    "bool": {
      "filter": [
        {
          "term": {
            "username": "alfred"
          }
        }
      ]
    }
  }
}

GET test_search_index/_search
{
  "query": {
    "bool": {
      "must": [
        {
          "match": {
            "username": "alfred"
          }
        },
        {
          "match": {
            "job": "specialist"
          }
        }
      ]
    }
  }
}

GET test_search_index/_search
{
  "query": {
    "bool": {
      "must": [
        {
          "match": {
            "job": "java"
          }
        }
      ],
      "must_not": [
        {
          "match": {
            "job": "ruby"
          }
        }
      ]
    }
  }
}


GET test_search_index/_search
{
  "query": {
    "bool": {
      "should": [
        {
          "match": {
            "username": "junior"
          }
        },
        {
          "match": {
            "job": "ruby"
          }
        }
      ]
    }
  }
}

GET test_search_index/_search
{
  "query": {
    "bool": {
      "should": [
        {"term": {"job": "java"}},
        {"term": {"job": "ruby"}},
        {"term": {"job": "specialist"}}
      ],
      "minimum_should_match": 2
    }
  }
}

# must与should一起时，must为主，should加分
GET test_search_index/_search
{
  "query": {
    "bool": {
      "must": [
        {
          "term": {
            "username": "alfred"
          }
        }
      ],
      "should": [
        {
          "term": {
            "job": "ruby"
          }
        }
      ]
    }
  }
}


# count api
GET test_search_index/_count
{
  "query": {
    "match": {
      "username": "alfred"
    }
  }
}


# source_filter
# 方式一
GET test_search_index/_search?_source=username
# 方式二
GET test_search_index/_search
{
  "_source": false
}

GET test_search_index/_search
{
  "_source": ["username", "age"]
}

GET test_search_index/_search
{
  "_source": {
    "includes": "*i*",
    "excludes": "birth"
  }
}