多个字段上的弹性搜索短语前缀查询 [英] Elasticsearch phrase prefix query on multiple fields

问题描述

我是ES的新手，我正在尝试构建一个可以为多个字段使用phrase_prefix的查询，所以我不必多次搜索。这是我到目前为止已经有的：

  {
查询：{
 ：{
first_name：{
query：Gustavo，
type：phrase_prefix
} 
} 
} 
}'
  

有人知道如何搜索多个字段，说last_name ？

解决方案

文本查询已被弃用（有效地重命名）前一段，赞成匹配查询。匹配查询支持单个字段，但您可以使用多重查询它支持相同的选项，并允许在多个字段上进行搜索。这个例子应该对你有帮助：

  {
query：{
 multi_match：{
fields：[title，subtitle]，
query：试用ela，
type：phrase_prefix
} 
} 
} 
  

您可以使用Java API实现相同像这样：

  QueryBuilders.multiMatchQuery（试用ela，标题，subtitle）
。键入（MatchQueryBuilder.Type.PHRASE_PREFIX）; 
  

I'm new to ES and I'm trying to build a query that would use phrase_prefix for multiple fields so I dont have to search more than once.

Here's what I've got so far:

{ 
    "query" : { 
        "text" : { 
            "first_name" : { 
                "query" : "Gustavo", 
                "type" : "phrase_prefix" 
            }
        } 
    }
}'

Does anybody knows how to search for more than one field, say "last_name" ?

解决方案

The text query that you are using has been deprecated (effectively renamed) a while ago in favour of the match query. The match query supports a single field, but you can use the multi_match query which supports the very same options and allows to search on multiple fields. Here is an example that should be helpful to you:

{
    "query" : {
        "multi_match" : {
            "fields" : ["title", "subtitle"],
            "query" : "trying out ela",
            "type" : "phrase_prefix"
        }
    }
}

You can achieve the same using the Java API like this:

QueryBuilders.multiMatchQuery("trying out ela", "title", "subtitle")
    .type(MatchQueryBuilder.Type.PHRASE_PREFIX);

这篇关于多个字段上的弹性搜索短语前缀查询的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！