es 批量更新字段值操作

小鱼儿 2022-02-17 04:43 2722阅读 0赞

### 官方文档 ###

curl -X POST "localhost:9200/twitter/_update_by_query" -H 'Content-Type: application/json' -d'
    {
      "script": {
        "source": "ctx._source.likes++",
        "lang": "painless"
      },
      "query": {
        "term": {
          "user": "kimchy"
        }
      }
    }
    '

### 具体使用 ###

方式一：
    {
      "script": {
        "source": "ctx._source.xxx='xxxxx'",
        "lang": "painless"
      },
      "query": {
        "term": {
          "xxxx": "xxxxx"
        }
      }
    }
    方式二：
    {
      "script": {
        "source": "ctx._source['xxx']='xxxxx'",
        "lang": "painless"
      },
      "query": {
        "term": {
          "xxxx": "xxxxx"
        }
      }
    }

以上2种 query 都会报错  
报错如下：

{
      "error": {
        "root_cause": [
          {
            "type": "script_exception",
            "reason": "compile error",
            "script_stack": [
              "ctx._source[xxx]=xxxx",
              "            ^---- HERE"
            ],
            "script": "ctx._source[xxx]=xxxx",
            "lang": "painless"
          }
        ],
        "type": "script_exception",
        "reason": "compile error",
        "script_stack": [
          "ctx._source[xxx]=xxxx",
          "            ^---- HERE"
        ],
        "script": "ctx._source[xxx]=xxxx",
        "lang": "painless",
        "caused_by": {
          "type": "illegal_argument_exception",
          "reason": "Variable [xxx] is not defined."
        }
      },
      "status": 500
    }

*  原因：es 不同的版本可以使用的语法稍有不同

修改如下：

curl -X POST "http://127.0.0.1:9200/indexxxx/_update_by_query" -H 'Content-Type: application/json' -d'
    {
      "script": {
          "source": "ctx._source.name = params.xxxname",
          "params": { "xxxname": "abcabc" },
        "lang": "painless"
      },
      "query": {
        "term": {
          "user": "kimchy"
        }
        }
      }
    }
    '