python - more_like_this 多个索引的elasticsearch查询

Question

使用more_like_this查询进行搜索时是否可以同时查询多个elasticsearch索引？

我正在用 python 构建查询，但我认为这并不重要。这是调用单个索引的主体:

{
  "query": {
    "more_like_this": {
      "fields": [
        "Title",
        "Description"
      ],
      "like": {
        "_id": "62546841",
        "_index": "puppies",
        "_type": "puppies_little"
      }
    }
  }
}

...这是curl 调用:

 curl -XPOST http://machineName:9200/puppies/_search?pretty=true -d 

Answer 1

事实证明，无需做太多事情就能使该查询跨多个索引工作。我只需要将额外的索引添加到 http 调用中。例如，使用curl:

curl -XPOST http://machineName:9200/puppies,kittens/_search?pretty=true -d '{ "query" : {  "more_like_this" : { "fields" : ["Title","Description"], "like" : { "_index" : "puppies", "_type":"puppies_little","_id":"62546841"} } } }'