ElasticSearch新增字段_elasticsearch 新增字段

环境： 阿里云ElasticSearch 6.7
需求： 给指定索引增加字段

1. 创建一个索引

PUT /indexName
{
  "settings": {
    "number_of_shards": 2,
    "number_of_replicas": 1
  },
  "mappings": {
    "_doc": {
      "properties": {
        "id": {
          "type": "long"
        },
        "name": {
          "type": "text"
        },
        "picture_url": {
          "type": "keyword"
        }
      }
    }
  }
}
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查看创建好的索引mapping，显示如下：

{
  "hello" : {
    "mappings" : {
      "_doc" : {
        "properties" : {
          "id" : {
            "type" : "long"
          },
          "name" : {
            "type" : "text"
          },
          "picture_url" : {
            "type" : "keyword"
          }
        }
      }
    }
  }
}

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2. 增加新的字段

PUT /hello/_doc/_mapping
{
  "properties": {
    "extendInfo": {
      "type": "text"
    },
    "stock": {
      "type": "integer"
    }
  }
}
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再次查看该索引的mapping，发现mapping发生了改变，字段增加上去了。

{
  "hello" : {
    "mappings" : {
      "_doc" : {
        "properties" : {
          "extendInfo" : {
            "type" : "text"
          },
          "id" : {
            "type" : "long"
          },
          "name" : {
            "type" : "text"
          },
          "picture_url" : {
            "type" : "keyword"
          },
          "stock" : {
            "type" : "integer"
          }
        }
      }
    }
  }
}

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3. 如果是嵌套节点下面新增字段

PUT hello/_doc/_mapping
{
    "properties": {
        "channelTradeNo": {
            "type": "keyword",
            "norms": false,
            "doc_values": false
        },
        "orderDetails": {
            "type": "nested",
            "properties": {
                "rightsStatus": {
                    "type": "keyword",
                    "norms": false,
                    "doc_values": false
                },
                "rightsCurrTime": {
                    "type": "keyword",
                    "norms": false,
                    "doc_values": false
                },
                "rightsEndTime": {
                    "type": "keyword",
                    "norms": false,
                    "doc_values": false
                }
            }
        }
    }
}
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结束语：分享是一种乐趣，你知道的越多，你知道的越少。