ElasticSearch - 匹配文档中的所有嵌套变体

Question

我有几种产品，如下所示

{
    "title": "100% Cotton Unstitched Suit For Men",
    "slug": "100-cotton-unstitched-suit-for-men",
    "price": 200,
    "sale_price": 0,
    "vendor_id": 32,
    "featured": 0,
    "viewed": 20,
    "stock": 4,
    "sku": "XXX-B",
    "rating": 0,
    "active": 1,
    "vendor_name": "vendor_name",
    "category": [
        "men_fashion",
        "traditional_clothing",
        "unstitched_fabric"
    ],
    "image": "imagename.jpg",
    "variations": [
        {
            "variation_id": "34",
            "stock": 5,
            "price": 200,
            "variation_image": "",
            "sku": "XXX-C",
            "size": "m",
            "color": "red"
        },
        {
            "variation_id": "35",
            "stock": 5,
            "price": 200,
            "variation_image": "",
            "sku": "XXX-D",
            "size": "l",
            "color": "red"
        }
    ]
}

我正在寻找具有以下所有参数的查询

1. 获取特定类别的所有产品
2. 获取所有黑色产品
3. 获取尺寸l和m

我当前的查询：

{
    "size": 15,
    "from": 0,
    "query": {
        "filtered": {
            "filter": {
                "bool": {
                    "must": [
                        {
                            "match": {
                                "category": "women_fashion"
                            }
                        },
                        {
                            "nested": {
                                "path": "variations",
                                "query": {
                                    "bool": {
                                        "must": [{
                                                "match": {
                                                    "variations.color": "red"
                                                }
                                            },
                                            {
                                                "match": {
                                                    "variations.size": "l"
                                                }
                                            },
                                            {
                                                "match": {
                                                    "variations.size": "m"
                                                }
                                            }
                                        ]
                                    }
                                }
                            }
                        }
                    ]
                }
            }
        }
    }
}

如果我只搜索1个尺寸，它可以正常工作。但是一旦我搜索了2个尺寸，它就没有记录。我的猜测是它在每个嵌套变体中查找所有3个参数，显然它无法找到。我如何修改查询以搜索

1. 尺寸：m，颜色：黑色
2. 尺寸：l，颜色：黑色

我也尝试过使用嵌套过滤器，但问题是当我正在寻找“必须”查询时，它就像“应该”查询一样。即。它显示所有产品都有很大的变化，而我只是想展示大而红的产品。

我的第二个查询：

{
    "size": 15,
    "from": 0,
    "query": {
        "filtered": {
            "filter": {
                "bool": {
                    "must": [
                        {
                            "match": {
                                "category": "women_fashion"
                            }
                        },
                        {
                            "nested": {
                                "path": "variations",
                                "query": {
                                    "bool":{
                                        "filter": [
                                            {
                                                "term": {
                                                    "variations.color": "red"
                                                }
                                            },
                                            {
                                                "term": {
                                                    "variations.size": "l"
                                                }
                                            }

                                        ]
                                    }
                                }
                            }
                        }
                    ]
                }
            }
        }
    }
}

Answer 1

您可以将尺寸变体放入其自己的子句中，以便至少有一种尺寸匹配

{
  "query": {
    "filtered": {
      "filter": {
        "bool": {
          "must": [
            {
              "match": {
                "category": "women_fashion"
              }
            },
            {
              "nested": {
                "path": "variations",
                "query": {
                  "bool": {
                    "must": [
                      {
                        "match": {
                          "variations.color": "red"
                        }
                      },
                      {
                        "query": {
                          "bool": {
                            "should": [
                              {
                                "match": {
                                  "variations.size": "l"
                                }
                              },
                              {
                                "match": {
                                  "variations.size": "m"
                                }
                              }
                            ]
                          }
                        }
                      }
                    ]
                  }
                }
              }
            }
          ]
        }
      }
    }
  }
}