About Me
I am currently a 4th-year Ph.D. student, at Department of Computer Science and Technology, Tsinghua University. My advisor is professor Guoliang Li. I am also in close cooperation with professor Xuanhe Zhou from Shanghai Jiao Tong University.
My research focuses on autonomous database systems and data agents. First, I work on applying AI (ML, LLM) to enhance DBMS, including learned indexes, database diagnosis, and query optimization. Second, I also focus on the design of Data+AI agents capable of autonomously handling data-related tasks [see my resume].
Selected Publications (Full List)
- AgenticDataBench: A Comprehensive Benchmark for Data Agents
Zhaoyan Sun, Shan Zhong, Daizhou Wen, Jiaxing Han, Guoliang Li, Ying Yan, Peng Zhang, Yu Su, Xiang Qi, Baolin Sun, Chengyuan Yang, Tao Fang, Huaiyu Ruan
VLDB (2027). In revision. [paper] [code] - R-Bot: An LLM-based Query Rewrite System
Zhaoyan Sun, Xuanhe Zhou, Guoliang Li, Xiang Yu, Jianhua Feng, Yong Zhang
VLDB (2025). [paper] [code] - D-Bot: An LLM-Powered DBA Copilot
Zhaoyan Sun, Xuanhe Zhou, Jianming Wu, Wei Zhou, Guoliang Li
SIGMOD Demo (2025). [paper] [code (0.6k stars)] - D-bot: Database diagnosis system using large language models
Xuanhe Zhou, Guoliang Li, Zhaoyan Sun, Zhiyuan Liu, Weize Chen, Jianming Wu, Jiesi Liu, Ruohang Feng, Guoyang Zeng
VLDB (2024). [paper] [code (0.6k stars)]
BenchCouncil Top-100 Open Source Achievement - Learned Index: A Comprehensive Experimental Evaluation
Zhaoyan Sun, Xuanhe Zhou, Guoliang Li
VLDB (2023). [paper] [code]
Selected Awards
- 2022 - Outstanding Graduate of Beijing (top 5%)
- 2022 - Excellent Graduate of Tsinghua University (top 10%)
Education
- Aug. 2022 - now, Ph.D, Dept. of Computer Science and Technology, Tsinghua University, Bejing, China
- Aug. 2018 - Jul. 2022, Undergraduate, Dept. of Computer Science and Technology, Tsinghua University, Bejing, China