es环境

• Elasticsearch 7.1x

  使用方法

  • 将通过 convert processor 实现

    index准备

    POST index_src_1/_doc/1
    {
      "id":"111111",
      "author": "zlh"
    }
    

    GET index_src_1/_search查询得到字符串id

    	"_source" : {
    	  "id" : "111111",
    	  "author" : "zlh"
    	}
    

    _reindex复制index

    POST /_reindex
    {
      "source": {
        "index": "index_src_1",
        "size": 10
      },
      "dest": {
        "index": "index_src_2"
      }
    }
    

    GET index_src_2/_search查询得到字符串id

    	"_source" : {
    	  "id" : "111111",
    	  "author" : "zlh"
    	}
    

    希望将原index index_src_1中id为string类型转为目标index中long类型

    运用 convert 创建 pipeline

    PUT _ingest/pipeline/zlh-pipeline-id
    {
      "description": "描述：运用convert创建pipeline，将id字段的内容转换为long",
      "processors" : [
        {
          "convert" : {
            "field" : "id",
            "type": "long"
          }
        }
      ]
    }
    

    _reindex复制index

    POST /_reindex
    {
      "source": {
        "index": "index_src_1",
        "size": 10
      },
      "dest": {
        "index": "index_src_2",
        "pipeline": "zlh-pipeline-id"
      }
    }
    

    GET index_src_2/_search查询得到long型id

    	"_source" : {
    	  "author" : "zlh",
    	  "id" : 111111
    	}