如何使用布尔值限制Elasticsearch查询结果？

Question

在我的Rails应用中，我有2个模型：User（id）和Document（id，user_id，document_title，document）

  def self.search(query)
    __elasticsearch__.search(
      {
        query: {
          multi_match: {
            query: query,
            fields: ['document_title^10', 'document']
          }
        },
      }
  end

我正在使用上面的搜索查询，该查询非常适合整个表的返回结果。 问题是，结果不限于current_user。 我正在尝试将搜索方法更新为仅返回current_user的结果。 根据文档，我在做：

  def self.search(query, user_id)
    __elasticsearch__.search(
      {
        bool: {
          filter: ["user_id", user_id]
        },
        query: {
          multi_match: {
            query: query,
            fields: ['document_title^10', 'document']
          }
        },
      }
  end

但是，这是错误的：

[400] {"error":{"root_cause":[{"type":"search_parse_exception","reason":"failed to parse search source. unknown search element [bool]","line":1,"col":2}],"type":"search_phase_execution_exception","reason":"all shards failed","phase":"query","grouped":true,"failed_shards":[{"shard":0,"index":"documents","node":"52GAD0HbT4OlekjesTZY_A","reason":{"type":"search_parse_exception","reason":"failed to parse search source. unknown search element [bool]","line":1,"col":2}}]},"status":400}

Answer 1

我不确定您要查看的文档是什么，但该查询不正确：多重匹配查询应位于bool查询的must子句中。

{
   query: {
     bool: {
       must: [{
        multi_match: {...}
      }],
      filter: [{
        term: {user_id: user_id}
      }]
    }
  }
}