[Updated on 3 Sep, 2026]

I am a Ph.D. student in Computer Science at Renmin University of China. My research focuses on the storage layer of lakehouses. I am currently a Rhino-Bird intern at Tencent TDSQL.

Education

• Ph.D. in Computer Science, Renmin University of China, 2024.09 - present
• B.S. in Computer Science, Renmin University of China, 2020.09 - 2024.06

Experience

• Tencent TDSQL, Rhino-Bird Intern, 2026.06 - present
  • Built a real-time update pipeline from TDSQL to OLAP, including transactional change synchronization and end-to-end validation
  • Designed a GC-aware in-memory multi-version index to reduce RocksDB version traversal and storage overhead
• Real-time Updates for OLAP Databases, 2024.09 - 2026.05
  • Implemented low-memory out-of-place updates and MVCC on columnar data, providing snapshot isolation for queries
  • Improved write throughput while reducing interference with query performance
  • Papers: VLDB 2027 (first author), FORMATS’26 @ SIGMOD (second author)
  • ~57.9K LoC, pixelsdb/pixels
• Cloud-native Database with Multiple Service Levels, 2023.12 - 2024.08
  • Built adaptive multi-SLA query scheduling over disaggregated storage, using both cloud VMs and cloud functions
  • Developed a web client with a Text-to-SQL interface
  • Paper: ICDE 2025 Demo (student first author)
  • ~6K LoC, pixelsdb/pixels-rover

Publications

VLDB '27 | Transactional Data Change for Real-Time Analytics in Lakehouses
Dongyang Geng, Haoqiong Bian, Zinuo Li, Haoyue Li
Code | To appear

FORMATS '26 | How Consistent and Fresh are Lake Tables Really
Zinuo Li, Dongyang Geng, Haoyue Li, Hailong Yu, Qi Lei, Haoqiong Bian
PDF

ICDE '25 Demo | PixelsDB: Serverless and NL-Aided Data Analytics with Flexible Service Levels and Prices
Haoqiong Bian, Dongyang Geng, Haoyang Li, Yunpeng Chai, Anastasia Ailamaki
PDF | Code

arXiv '24 | Serverless Query Processing with Flexible Performance SLAs and Prices
Haoqiong Bian, Dongyang Geng, Panfeng Guo, Yunpeng Chai, Anastasia Ailamaki
PDF

Honors and Awards

• Tencent Rhino-Bird Elite Talent Program, 2026
• Outstanding Contribution Award, RUC-Tencent Joint Lab, 2025
• First-class Graduate Scholarship, Renmin University of China
• Beijing Outstanding Undergraduate Thesis, 2024
• Special Academic Excellence Scholarship, Renmin University of China (top 3% in major)
• RUC-Huawei “Intelligent Base” Student Scholarship
• National Mathematical Contest in Modeling, Beijing First Prize