Biography

I am a fourth-year PhD student at IIIS, Tsinghua University. My advisor is Huanchen Zhang. I also work closely with Andy Pavlo. I received my B.S. degree in Computer Science and Mathematics from University of Wisconsin-Madison, advised by Xiangyao Yu. My research interests include columnar storage formats, cloud OLAP databases, and databases on new hardwares/platforms (SIMD, GPU, Wasm).

Publications

Towards Functional Decomposition of Storage Formats
Martin Prammer, Xinyu Zeng, Ruijun Meng, Wes McKinney, Huanchen Zhang, Andrew Pavlo, Jignesh M. Patel
Proceedings of the 2025 Conference on Innovative Data Systems Research (CIDR’25)

NULLS! Revisiting Null Representation in Modern Columnar Formats [paper] [code] [slides]
Xinyu Zeng, Ruijun Meng, Andrew Pavlo, Wes McKinney, and Huanchen Zhang
Proceedings of the 20th International Workshop on Data Management on New Hardware (DaMoN’24)

LeCo: Lightweight Compression via Learning Serial Correlations [paper] [double-column version] [code]
Yihao Liu, Xinyu Zeng, Huanchen Zhang
Proceedings of the ACM on Management of Data (SIGMOD’24)

An Empirical Evaluation of Columnar Storage Formats [paper] [extended version] [code] [slides]
Xinyu Zeng, Yulong Hui, Jiahong Shen, Andrew Pavlo, Wes McKinney, Huanchen Zhang
Proceedings of the VLDB Endowment (VLDB’23)

Cornus: Atomic Commit for Cloud DBMS with Storage Disaggregation [paper] [extended version] [code]
Zhihan Guo, Xinyu Zeng, Kan Wu, Wuh-Chwen Hwang, Ziwei Ren, Xiangyao Yu, Mahesh Balakrishnan, Philip A. Bernstein
Proceedings of the VLDB Endowment (VLDB’22)

Teaching

Tsinghua University:

• TA - Database Systems, Spring 2023

UW-Madison:

• Peer mentor - CS537 Intro to Operating System, Spring 2020
• Peer mentor - CS577 Intro to Algorithms, Fall 2019

Experiences

Software Engineer Intern - RisingWave 02/2021 - 07/2021

Software Engineer Intern - Huawei Cloud 06/2019 - 08/2019

Site last updated: Jan 2025