### Search before asking - [x] I had searched in the [issues](https://github.com/apache/eventmesh/issues?q=is%3Aissue) and found no similar issues. ### Feature Request (1)Elasticsearch 版本使用 Elasticsearch 默认 mapper (2)需要支持 分组,排序等功能 (3)请按照 统计模块 的设计标准开发 (4)可以参考 knowstreaming ### Are you willing to submit PR? - [ ] Yes I am willing to submit a PR! ### Code of Conduct - [ ] I agree to follow this project's [Code of Conduct](https://www.apache.org/foundation/policies/conduct) *