短语搜索
找出一个属性中的独立单词是没有问题的,但有时候想要精确匹配一系列单词或者_短语_ 。 比如, 我们想执行这样一个查询,仅匹配同时包含 “rock” 和 “climbing” ,并且 二者以短语 “rock climbing” 的形式紧挨着的雇员记录。
为此对 match 查询稍作调整,使用一个叫做 match_phrase 的查询:
GET /megacorp/_search?pretty
{
"query": {
"match_phrase": {
"about": "rock climbing"
}
}
}
// 返回结果
{
"took": 14,
"timed_out": false,
"_shards": {
"total": 1,
"successful": 1,
"skipped": 0,
"failed": 0
},
"hits": {
"total": {
"value": 1,
"relation": "eq"
},
"max_score": 1.4167401,
"hits": [
{
"_index": "megacorp",
"_id": "1",
"_score": 1.4167401,
"_source": {
"type": "employee",
"first_name": "John",
"last_name": "Smith",
"age": 25,
"about": "I love to go rock climbing",
"interests": [
"sports",
"music"
]
}
}
]
}
}
毫无悬念,返回结果仅有 John Smith 的文档。