ElasticSearch修改索引类型

• Z时代
• 2024-01-10
• 分类：综合

以官方数据索引为例子 /shakespeare

1.获取原来的索引结构

GET /shakespeare
执行结果：
{
  "shakespeare" : {
    "aliases" : {},
    "mappings" : {
      "properties" : {
        "line_id" : {
          "type" : "long"
        },
        "line_number" : {
          "type" : "text",
          "fields" : {
            "keyword" : {
              "type" : "keyword",
              "ignore_above" : 256
            }
          }
        },
        "play_name" : {
          "type" : "text",
          "fields" : {
            "keyword" : {
              "type" : "keyword",
              "ignore_above" : 256
            }
          }
        },
        "speaker" : {
          "type" : "text",
          "fields" : {
            "keyword" : {
              "type" : "keyword",
              "ignore_above" : 256
            }
          }
        },
        "speech_number" : {
           "type": "text",
           "fields": {
           "keyword": {
            "type": "keyword",
            "ignore_above": 256
          }
        },
        "text_entry" : {
          "type" : "text",
          "fields" : {
            "keyword" : {
              "type" : "keyword",
              "ignore_above" : 256
            }
          }
        },
        "type" : {
          "type" : "text",
          "fields" : {
            "keyword" : {
              "type" : "keyword",
              "ignore_above" : 256
            }
          }
        }
      }
    },
    "settings" : {
      "index" : {
        "creation_date" : "1591865027378",
        "number_of_shards" : "1",
        "number_of_replicas" : "1",
        "uuid" : "5dtedNT6SyC_AG0ZhQwk5Q",
        "version" : {
          "created" : "7040299"
        },
        "provided_name" : "shakespeare2"
      }
    }
  }
}

2.创建新的索引

PUT /shakespeare2
{
  "mappings": {
    "properties": {
      "line_id": {
        "type": "long"
      },
      "line_number": {
        "type": "text",
        "fields": {
          "keyword": {
            "type": "keyword",
            "ignore_above": 256
          }
        }
      },
      "play_name": {
        "type": "text",
        "fields": {
          "keyword": {
            "type": "keyword",
            "ignore_above": 256
          }
        }
      },
      "speaker": {
        "type": "text",
        "fields": {
          "keyword": {
            "type": "keyword",
            "ignore_above": 256
          }
        }
      },
      "speech_number": {
        "type": "long" //这里修改为 long 类型
      },
      "text_entry": {
        "type": "text",
        "fields": {
          "keyword": {
            "type": "keyword",
            "ignore_above": 256
          }
        }
      },
      "type": {
        "type": "text",
        "fields": {
          "keyword": {
            "type": "keyword",
            "ignore_above": 256
          }
        }
      }
    }
  }
}

同步数据

POST _reindex                   
{
  "source": {
    "index": "shakespeare"
  },
  "dest": {
    "index": "shakespeare2"
  }
}

删除老索引

DELETE shakespeare

别名设置

POST /_aliases
{
  "actions": [
    {
      "add": {
        "index": "shakespeare2",
        "alias": "shakespeare"
      }
    }
  ]
}

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