Publications

Accelerate Distributed Joins with Predicate Transfer
Yifei Yang, Xiangyao Yu
Proceedings of SIGMOD, June 2025 [paper] [code]

Debunking the Myth of Join Ordering: Toward Robust SQL Analytics
Junyi Zhao, Kai Su, Yifei Yang, Xiangyao Yu, Paraschos Koutris, Huanchen Zhang
Proceedings of SIGMOD, June 2025 [paper] [extended version] [code]

FlexpushdownDB: Rethinking Computation Pushdown for Cloud OLAP DBMSs
Yifei Yang, Xiangyao Yu, Marco Serafini, Ashraf Aboulnaga, Michael Stonebraker
The VLDB Journal (VLDBJ), July 2024 [paper] [code]

Predicate Transfer: Efficient Pre-Filtering on Multi-Join Queries
Yifei Yang, Hangdong Zhao, Xiangyao Yu, Paraschos Koutris
Proceedings of The Conference on Innovative Data Systems Research (CIDR), Jan 2024 [paper] [code] [podcast]

FlexPushdownDB: Hybrid Pushdown and Caching in a Cloud DBMS
Yifei Yang, Matt Youill, Matthew Woicik, Yizhou Liu, Xiangyao Yu, Marco Serafini, Ashraf Aboulnaga, Michael Stonebraker
Proceedings of the VLDB Endowment, July 2021 [paper] [code]

ESTOCADA: Towards Scalable Polystore Systems
Rana Alotaibi, Bogdan Cautis, Alin Deutsch, Moustafa Latrache, Ioana Manolescu, Yifei Yang
Proceedings of the VLDB Endowment, August 2020 (Demo) [paper]