Go中的Elasticsearch检查文档中是否存在字段

我正在使用Olivere的v.5 elasticsearch库- https://godoc.org/github.com/olivere/elastic </ p>

尝试检查是否 文档中存在特定字段。 根据ES文档,有可能- https://www.elastic.co/guide/zh-CN/elasticsearch/reference/current/query-dsl-exists-query.html </ p>

但我找不到 在库中执行查询。 我找到了NewExistsService,但没有看到按字段名称搜索的方法。 我需要类似</ p>

  elasticClient.Exists()。Field(“ datefield”)
</ code> </ pre>

之类的东西,它们返回true 或错误。 但是,“字段”不是“ NewExistsService”的方法。 任何帮助将不胜感激。</ p>
</ div>

展开原文

原文

I'm using olivere's v.5 elasticsearch library - https://godoc.org/github.com/olivere/elastic

Trying to check if a particular field exists in a document. According to ES docs, it's possible - https://www.elastic.co/guide/en/elasticsearch/reference/current/query-dsl-exists-query.html

But I can't find a Go query in the library to execute that. I found the NewExistsService but I don't see a method to search by field name. I need something like

elasticClient.Exists().Field("datefield")

which returns true or false. But 'Field' is not a method of 'NewExistsService'. Any help would be appreciated.

dongtang9855
dongtang9855 您是否知道如何执行此操作?
2 年多之前 回复
drrkgbm6851
drrkgbm6851 然后只需获取文档并检查字段即可。如果文档太大,则可以使用StoreFields忽略所有其他字段。假设的elasticClient.Exists()。Field(“datefield”)不能工作,因为它没有指定文档ID。
2 年多之前 回复
dongmi4734
dongmi4734 我想我应该已经指定了,我在寻找文档中是否存在字段,而不是索引。
2 年多之前 回复
duanjiu3486
duanjiu3486 但是,这甚至还不是您链接的文档中的ElasticAPI如何工作的方式。对于该链接页面,它“返回在原始字段中至少具有一个非空值的文档”。它不会根据索引中是否存在字段来返回true或false-鉴于Elastic是无模式的,这在Elastic中仍然是一个奇怪的问题。
2 年多之前 回复
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