如何使用布爾值限制Elasticsearch查詢結果？

Question

在我的Rails應用中，我有2個模型：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詢，該查詢非常適合整個表的返回結果。 問題是，結果不限於current_user。 我正在嘗試將搜索方法更新為僅返回current_user的結果。 根據文檔，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，這是錯誤的：

[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

我不確定您要查看的文檔是什么，但該查詢不正確：多重匹配查詢應位於bool查詢的must子句中。

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