Question

我想在ElasticSearch 2.4中使用PipeLine聚合（Bucket Selector Aggregation）到嵌套字段聚合。我想做类似下面的事情，但我没有成功。如果可以在嵌套字段中进行PipeLine聚合，请指教我吗？

public class Cover {
    private String url;
    private String cloudinaryId;
    private Integer width;
    private Integer height;

    public String getUrl() {
        return url;
    }

    public void setUrl(String url) {
        this.url = url;
    }

    public String getCloudinaryId() {
        return cloudinaryId;
    }

    public void setCloudinaryId(String cloudinaryId) {
        this.cloudinaryId = cloudinaryId;
    }

    public Integer getWidth() {
        return width;
    }

    public void setWidth(Integer width) {
        this.width = width;
    }

    public Integer getHeight() {
        return height;
    }

    public void setHeight(Integer height) {
        this.height = height;
    }

}

Answer 1

我找到了查询的解决方案。实际上，存储区选择器Aggregation应该与嵌套聚合并行，并且路径应该由＆＃39;＆gt;＆＃39;引用。如下图所示：

{
  "size": 0,
  "aggregations": {
    "amount": {
      "terms": {
        "field": "countId",
        "size": 0
      },
      "aggregations": {
        "totalPaidAmount": {
          "nested": {
            "path": "count"
          },
          "aggregations": {
            "paidAmountTotal": {
              "sum": {
                "field": "count.totalPaidAmount"
              }
            }
          }
        },
        "paidAmount_filter": {
          "bucket_selector": {
            "script": {
              "inline": "amount > 1000"
            },
            "buckets_path": {
              "amount": "totalPaidAmount>paidAmountTotal"
            }
          }
        }
      }
    }
  }
}

Answer 2

您在params值中缺少script。所以，paidAmount_filter应该是这样的：

"bucket_filter": {
  "bucket_selector": {
    "buckets_path": {
      "amount ": "paidAmountTotal"
    },
    "script": "params.amount > 5000000"
  }
}

我们可以在ElasticSearch中对嵌套聚合应用Bucket Selector聚合吗？

2 个答案: