Question

我有产品，有很多功能。架构看起来像这样

[{
  name: "Test product 1",
  features: [
    ...
    {name: "color", value: "Blue"},
    {name: "size", value: "M"},
    ...
  ]
},{
  name: "Test product 2",
  features: [
    ...
    {name: "color", value: "Blue"},
    {name: "size", value: "XL"}
    ...
  ]
},{
  name: "Test product 3",
  features: [
    ...
    {name: "color", value: "White"},
    {name: "size", value: "XL"}
    ...
  ]
}]

我希望获得每个功能的每个不同值的方面。像这样：

{
  color: {
    Blue: 2,
    White: 1
  },
  size: {
    M: 1,
    XL: 2
  }
}

如何设计正确的索引架构以及如何查询此方面？我应该创建两个不同的数组，一个用于特征名称，另一个用于类型＆＃34;对象＆＃34; ...然后进行多个查询，首先是特征名称，然后是每个嵌套方面？... < / p>

抱歉，我很困惑，并且不了解如何通过方面获得此结果

Answer 1

为什么要尝试使用facet？ Facets弃用，使用聚合..

以下是使用构面和聚合进行搜索的方法。 1.创建索引并放置映射

PUT x3
POST x3/x2/_mapping
{
    "x2":{
        "properties": {
            "features" :{
                "type": "nested"
            }
        }
    }
}
POST x3/x2/1
{
  "name" :"Test product 1",
  "features": [
    {"name": "color", "value": "Blue"},
    {"name": "size", "value": "M"}
  ]
}

POST x3/x2/2
{
  "name": "Test product 2",
  "features": [
    {"name": "color", "value": "Blue"},
    {"name": "size", "value": "XL"}
  ]
}

使用构面搜索

POST x3/x2/_search
{
   "size": 0,
   "facets": {
      "sizeFacet": {
         "terms": {
            "field": "features.value",
            "size": 10000
         },
         "facet_filter": {
            "term": {
               "features.name": "color"
            }
         },
         "nested": "features"
      },
      "colorFacet": {
         "terms": {
            "field": "features.value",
            "size": 10000
         },
         "facet_filter": {
            "term": {
               "features.name": "size"
            }
         },
         "nested": "features"
      }
   }
}

使用聚合搜索..

POST x3/x2/_search
{
   "size": 0,
   "aggs": {
      "features": {
         "nested": {
            "path": "features"
         },
         "aggs": {
            "names": {
               "terms": {
                  "field": "features.name",
                  "size": 0
               },
               "aggs": {
                  "value": {
                     "terms": {
                        "field": "features.value",
                        "size": 0
                     }
                  }
               }
            }
         }
      }
   }
}

弹性搜索中的动态方面。嵌套方面？

1 个答案: