C# Elasticsearch从数组中搜索多个聚合

如何在一个查询中动态组合多个聚合

我知道怎么做“硬编码”：

但是因为我使用了一个包含字段的数组，所以我需要如下内容。但是我得到了一个编译器错误，因为运算符“&=”不能组合“AggregationDictionary”和“TermsAggregation”：

string[] Fields = new[]{ "field1", "field2" }
foreach (string sField in Fields)
{
    request.Aggregations &= new TermsAggregation("agg_" + sField)
    {
        Field = sField
    };
}

我有“产品”、“品牌”、“模型”等领域的文章数据。

---

对于这个字段，我希望通过聚合获得每个不同的值。它用于显示三个组合框以及每个字段的可能值。

有几种不同的方法可以建立聚合集合。最接近你想做的事情是

var request = new SearchRequest<object>();

string[] Fields = new[] { "field1", "field2" };
AggregationBase aggregations = null;  
foreach (string sField in Fields)
{
    var termsAggregation = new TermsAggregation("agg_" + sField)
    {
        Field = sField
    };

    if (aggregations == null)
    {
        aggregations = termsAggregation;
    }
    else
    {
        aggregations &= termsAggregation;
    }
}

request.Aggregations = aggregations;

client.Search<object>(request);

---

有几种不同的方法可以用来建立聚合集合。最接近你想做的事情是

var request = new SearchRequest<object>();

string[] Fields = new[] { "field1", "field2" };
AggregationBase aggregations = null;  
foreach (string sField in Fields)
{
    var termsAggregation = new TermsAggregation("agg_" + sField)
    {
        Field = sField
    };

    if (aggregations == null)
    {
        aggregations = termsAggregation;
    }
    else
    {
        aggregations &= termsAggregation;
    }
}

request.Aggregations = aggregations;

client.Search<object>(request);

---

@Russ cam，请帮帮忙@Russ cam，帮帮忙

{
  "aggs": {
    "agg_field1": {
      "terms": {
        "field": "field1"
      }
    },
    "agg_field2": {
      "terms": {
        "field": "field2"
      }
    }
  }
}