白话Elasticsearch22- 深度探秘搜索技术之match_phrase_prefix实现search-time搜索推荐

原创

小小工匠 2021-05-31 17:16:06 ©著作权

文章标签 Elasticsearch教程数据库 文章分类 数据库

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文章目录

概述
match_phrase_prefix
- 官方说明
- 例子
总结

白话Elasticsearch22- 深度探秘搜索技术之match_phrase_prefix实现search-time搜索推荐_Elasticsearch教程

概述

继续跟中华石杉老师学习ES，第22篇

课程地址： https://www.roncoo.com/view/55

match_phrase_prefix

官方说明

https://www.elastic.co/guide/en/elasticsearch/reference/current/query-dsl-match-query-phrase-prefix.html

白话Elasticsearch22- 深度探秘搜索技术之match_phrase_prefix实现search-time搜索推荐_Elasticsearch教程_02

搜索推荐，search as you type，搜索提示，解释一下什么意思

假设有这么几个doc 如下

hello world
hello we
hello win
hello wind
hello dog
hello cat

搜索 hello w

hello world
hello we
hello win
hello wind

会给出提示如何上，搜索推荐的功能

这种效果

白话Elasticsearch22- 深度探秘搜索技术之match_phrase_prefix实现search-time搜索推荐_Elasticsearch教程_03

例子

造点数据

PUT /my_index1/my_type1/1
{
  "content":"hello Jack"
}


PUT /my_index1/my_type1/2
{
  "content":"hello John"
}




PUT /my_index1/my_type1/3
{
  "content":"hello Jose"
}





PUT /my_index1/my_type1/4
{
  "content":"hello Dave"
}

查询

GET /my_index1/my_type1/_search
{
  "query": {
    "match_phrase_prefix": {
      "content": "hello J"
    }
  }
}

{
  "took": 38,
  "timed_out": false,
  "_shards": {
    "total": 5,
    "successful": 5,
    "skipped": 0,
    "failed": 0
  },
  "hits": {
    "total": 3,
    "max_score": 1.7509375,
    "hits": [
      {
        "_index": "my_index1",
        "_type": "my_type1",
        "_id": "2",
        "_score": 1.7509375,
        "_source": {
          "content": "hello John"
        }
      },
      {
        "_index": "my_index1",
        "_type": "my_type1",
        "_id": "1",
        "_score": 1.1507283,
        "_source": {
          "content": "hello Jack"
        }
      },
      {
        "_index": "my_index1",
        "_type": "my_type1",
        "_id": "3",
        "_score": 1.1507283,
        "_source": {
          "content": "hello Jose"
        }
      }
    ]
  }
}