nest - 将文档批量插入文档到ElasticSearch中而无需更新

Question

如果Id存在，是否可以将批量将数据插入ES而不更新文档内容。仅不应插入现有文档，而无需进行任何更新。

Answer 1

是的，使用批量create:

POST /my_index/my_type/_bulk
{"create":{"_id":1}}
{"foo":1,"bar":"y"}
{"create":{"_id":6}}
{"foo":1,"bar":"y"}

上面的请求是针对已经存在的doc 1和不存在的doc 6。该请求的输出为:

"items": [
      {
         "create": {
            "_index": "my_index",
            "_type": "my_type",
            "_id": "1",
            "status": 409,
            "error": "DocumentAlreadyExistsException[[my_index][2] [my_type][1]: document already exists]"
         }
      },
      {
         "create": {
            "_index": "my_index",
            "_type": "my_type",
            "_id": "6",
            "_version": 1,
            "status": 201
         }
      }
   ]