ElasticSearch - 在nummur3哈希中的doc_value [英] ElasticSearch - doc_value in murmur3 hash

问题描述

继续上一个问题。

感谢@AndreiStefan我试图放一个使用 doc_values ：

Thanks to @AndreiStefan I'm trying to put a murmur3 hash off the heap, using doc_values:

"dynamic_templates": [
{
  "murmur3_hashed": {
    "mapping": {
      "index": "not_analyzed",
      "norms": {
        "enabled": false
      },
      "fielddata": {
        "format": "doc_values"
      },
      "doc_values": true,
      "type": "string",
      "fields": {
        "hash": {
          "index": "no",
          "doc_values": true,
          "type": "murmur3"
        }
      }
    },
    "match_mapping_type": "string",
    "match": "my_prop"
  }
}
]

我使用stream2es进行重新索引。

I used stream2es for reindexing.

重新索引后，结果属性为：

After a reindexing, the result property is:

  "my_prop": {
    "index": "not_analyzed",
    "fielddata": {
      "format": "doc_values"
    },
    "doc_values": true,
    "type": "string",
    "fields": {
      "hash": {
        "null_value": -1,
        "precision_step": 2147483647,
        "type": "murmur3"
      }
    }
  },

有什么问题？

为什么index：no，doc_values：true 在结果属性中缺少

推荐答案

这是我在ES 1.6.0中测试的命令列表：

This is the list of commands that I tested in ES 1.6.0:

PUT /test
{
  "mappings": {
    "_default_": {
      "dynamic_templates": [
        {
          "murmur3_hashed": {
            "mapping": {
              "index": "not_analyzed",
              "norms": {
                "enabled": false
              },
              "fielddata": {
                "format": "doc_values"
              },
              "doc_values": true,
              "type": "string",
              "fields": {
                "hash": {
                  "index": "no",
                  "doc_values": true,
                  "type": "murmur3"
                }
              }
            },
            "match_mapping_type": "string",
            "match": "my_prop"
          }
        }
      ]
    }
  }
}

POST /test/test_type/1
{
  "my_prop": "xxx"
}

GET /test/test_type/_mapping

---

我得到这个输出：

---

And I got this as output:

{
   "test": {
      "mappings": {
         "test_type": {
            "dynamic_templates": [
               {
                  "murmur3_hashed": {
                     "mapping": {
                        "fielddata": {
                           "format": "doc_values"
                        },
                        "norms": {
                           "enabled": false
                        },
                        "index": "not_analyzed",
                        "type": "string",
                        "fields": {
                           "hash": {
                              "index": "no",
                              "type": "murmur3",
                              "doc_values": true
                           }
                        },
                        "doc_values": true
                     },
                     "match": "my_prop",
                     "match_mapping_type": "string"
                  }
               }
            ],
            "properties": {
               "my_prop": {
                  "type": "string",
                  "index": "not_analyzed",
                  "doc_values": true,
                  "fielddata": {
                     "format": "doc_values"
                  },
                  "fields": {
                     "hash": {
                        "type": "murmur3",
                        "index": "no",
                        "doc_values": true,
                        "precision_step": 2147483647,
                        "null_value": -1
                     }
                  }
               }
            }
         }
      }
   }
}

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