Elasticsearch确切结果不会在第一时间返回

尼拉帕特尔

我添加了一些产品，例如“ lcd苹果iphone 11”，“ lcd苹果iphone x”，“ lcd苹果iphone xs”，“ lcd苹果iphone xr”，“ lcd三星s8”，“ lcd三星s8 +”，“ lcd苹果iphone xs max”，“ lcd苹果” “ iPhone XR电池”，我们最近添加了iPhone XR产品，因此

我已经创建了elasticsearch indexproducts_idx1和type product。

当我搜索这样的产品时apple iphone xr，它会返回iphone xr，但不会获得最佳结果。

我想要的是确切结果，然后是部分结果应在精确结果之后。我要根据准确性结果对结果进行排序。

这是我在php elasticsearch中的代码

<?php

    use Elasticsearch\ClientBuilder;

    require 'vendor/autoload.php';

   $client = ClientBuilder::create()->build();
 $values =['name','name.prefix','name.suffix','sku'];
$params =
[
'client'=>['verify'=>1,'connect_timeout'=>5],
'from'=> 0,
'size'=>25,
 'body'  =>[
'query' => [
 'bool'=>
            [
            'should'=> [[
                'multi_match'=> ['query'=>'apple iphone xr','type'=>'cross_fields','fields'=>$values,'operator'=>'AND']
                ],
                ['match'=>['all'=>['query'=>'apple iphone xr','operator'=>'AND','fuzziness'=>'AUTO'] ]]
                ]
            ]

],
'sort'=>['_score'=>['order'=>'desc']],
],

'index'=>'products_idx1'
];

 $response = $client->search($params);
echo "<pre>";print_r($response);

Elasticsearch忍者

虽然bhavya的答案有效，但由于使用match_phrase查询更为复杂（根据您可能拥有的数据集，查询可能更复杂且成本更高），我为此查询创建了一个更简单的版本。

索引样本文档

{
    "title" : "lcd apple iphone xr"
}
{
    "title" : "lcd apple iphone 11"
}
{
    "title" : "lcd apple iphone x"
}
{
    "title" : "lcd apple iphone xs"
}
{
    "title" : "iphone xr"
}

使用其他更简单的match子句的搜索查询

{
    "query": {
        "bool": {
            "should": [
                {
                    "match": {
                        "title" : "apple iphone xr"
                    }
                },
                {
                    "match": {    --> simple additional match clause solves issue.
                        "title": "iphone xr"
                    }
                }
            ]
        }
    }
}

搜索结果显示iphone xr在顶部，得分更高

 "hits": [
            {
                "_index": "64129903",
                "_type": "_doc",
                "_id": "6",
                "_score": 1.8347404, // note score is higher than other results.
                "_source": {
                    "title": "iphone xr"
                }
            },
            {
                "_index": "64129903",
                "_type": "_doc",
                "_id": "2",
                "_score": 1.8268716,
                "_source": {
                    "title": "lcd apple iphone xr"
                }
            },
            {
                "_index": "64129903",
                "_type": "_doc",
                "_id": "3",
                "_score": 0.54542315,
                "_source": {
                    "title": "lcd apple iphone 11"
                }
            },
            {
                "_index": "64129903",
                "_type": "_doc",
                "_id": "4",
                "_score": 0.54542315,
                "_source": {
                    "title": "lcd apple iphone x"
                }
            },
            {
                "_index": "64129903",
                "_type": "_doc",
                "_id": "5",
                "_score": 0.54542315,
                "_source": {
                    "title": "lcd apple iphone xs"
                }
            }
        ]

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