ElasticSearch如何获取其中包含10个或更多字段的文档？ [英] ElasticSearch how to get docs with 10 or more fields in them?

问题描述

我想获取所有包含10个或更多字段的文档。我猜是这样的：

I want to get all docs that have 10 or more fields in them. I'm guessing something like this:

{
  "query": {
    "range": {
      "fields": {
        "gt": 1000
      }
    }
  }
}

推荐答案

您可以做的就是运行这样的脚本查询

What you can do is to run a script query like this

{
  "query": {
    "script": {
      "script": {
        "source": "params._source.size() >= 10"
      }
    }
  }
}

但是，请注意，取决于您拥有的文档数量和支持集群的硬件，这可能会对集群的性能产生负面影响。

However, be advised that depending on the number of documents you have and the hardware that supports your cluster, this can negatively impact the performance of your cluster.

一个更好的主意是添加另一个包含文档包含的字段数的整数字段，因此您可以简单地运行 range 查询就像您的问题一样。

A better idea would be to add another integer field that contains the number of fields that the document contains, so you can simply run a range query on it, like in your question.

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