Elasticsearch : bool with regex, filter and aggs

Question

我是 AWS ElastiSearch 的新手，我正在尝试对有关标记电影的数据集执行一些操作。数据集有五列：genres, movieId, tag, title, userId。每部电影的年份都包含在标题中 Waterworld (1995)。我想看看 2002 年生产了多少带有 true story 标签的电影。因为我首先必须匹配日期，然后用标签过滤，最后计算我尝试用 bool 做的电影，像这样：

GET tagged_movies/_search
{
  "query": {
    "bool": {
      "must": [
        {
          "regexp": {
            "title": "(2002)"
          }
        }
      ],
      "filter": [
        {
          "term": {
            "tag": "true story"
          }
        }
      ],
      "aggs": {
        "by_numberofmovies": {
          "terms": {
            "field": "movieId"
          }
        }
      }
    }
  }
}

但我收到以下错误:

{
  "error" : {
    "root_cause" : [
      {
        "type" : "x_content_parse_exception",
        "reason" : "[18:7] [bool] unknown field [aggs]"
      }
    ],
    "type" : "x_content_parse_exception",
    "reason" : "[18:7] [bool] unknown field [aggs]"
  },
  "status" : 400
}

我完全不明白，因为 bool 应该识别 aggs。我试过查看文档和互联网，但它说 bool 确实应该识别 aggs。有人可以指导问题出在哪里吗？

这是该查询应匹配的示例文档的示例：

{
        "_index" : "tagged_movies",
        "_id" : "EgADsX8B2WnPqWZmot9b",
        "_score" : 1.0,
        "_source" : {
          "@timestamp" : "2011-03-22T04:22:48.000+01:00",
          "genres" : "Comedy",
          "movieId" : 5283,
          "tag" : "true story",
          "title" : "National Lampoon's Van Wilder (2002)",
          "userId" : 121,
          "timestamp" : "2011-03-22 04:22:48"
        }

Answer 1

aggs 不能在查询块内，aggs 和 query 是兄弟，你正确的查询应该像下面这样

{
    "query": {
        "bool": {
            "must": [
                {
                    "regexp": {
                        "title": "(2002)"
                    }
                }
            ],
            "filter": [
                {
                    "match": {
                        "tag": "true story"
                    }
                }
            ]
        }
    },
    "aggs": {
        "by_numberofmovies": {
            "terms": {
                "field": "movieId"
            }
        }
    }
}

Elasticsearch : bool with regex, filter and aggs

Elastisearch : bool with regexp, filter and aggs

regex

filter

aggregation

elasticsearch

elasticsearch-dsl