如何按热门匹配字段(文本字段)对聚合排序?还是有可能按文本字段对聚合排序(不使用_term)

时间:2019-04-10 06:34:30

标签: php sorting elasticsearch

与标题中一样,我在按文本字段对Elasticsearch聚合进行排序时遇到问题。有可能这样做吗?使用热门歌曲或类似内容?现在我正在使用术语聚合,我可以使用_term按聚合字段进行排序,但是我需要按不同的字段对聚合进行排序。我知道如何使用数值字段。例如使用最大,最小,总和等。

如果我能这样做(但我不能),那就太好了

    "aggs": {
        "Variants": {
            "terms": {
                "field": "variant",
                "order": {
                    "top_Song_hits": "asc"
                }
            },
            "aggs": {
                "top_Song_hits": {
                    "sum": {
                        "name": {
                            "order": "desc"
                        }
                    }
                }
            }
        }
    }
}

或类似这样:

{
    "aggs": {
        "Variants": {
            "terms": {
                "field": "variant",
                "order": {
                    "name_agg": "asc"
                }
            },
            "aggs": {
                "name_agg": {
                    "terms": {
                        "field": "name"
                    }
                }
            }
        }
    }
}

{
    "aggs": {
        "Variants": {
            "terms": {
                "field": "variant",
                "order": {
                    "details": "asc"
                }
            },
            "aggs": {
                "details": {
                    "top_hits": {
                        "size": 1,
                        "_source": {
                            "include": ["name"]
                        }
                    }
                }
            }
        }
    }
}

在最后一种情况下,我会收到错误消息:

"reason": "Invalid aggregation order path [details]. Buckets can only be sorted on a sub-aggregator path that is built out of zero or more single-bucket aggregations within the path and a final single-bucket or a metrics aggregation at the path end."

1 个答案:

答案 0 :(得分:0)