Kibana设置脚本化字段

官方文档

脚本话字段设置
painless文档
scripting文档

标题代码调试

painless wiki

标题调试工具

test demo

GET */_search
{
  "query": {
    "match_all": {
    }
  },
  "script_fields": {
    "spend_time": {
      "script": {
          "lang": "painless",
          "source": "if(params._source.message==null){return 0;}return 0"
      }
    }
  }
}

遇到的问题

Too many dynamic script
字段取值