Two-phase locking (2PL) is a fundamental and widely used concurrency control protocol. It regulates concurrent access to database data by following a specific sequence of lock acquisition and release during transaction execution, thereby ensuring transaction isolation. However, in strict 2PL, transactions must wait for...
Dong-Hui Wang, Qi-Yu Zhuang, Yu-Xing Chen et al.· IEEE Transactions on Knowled...· 0 citations
Enterprise data explosion and the urgent industry demand for realtime complex multidimensional analytics require OLAP databases to be highly scalable, efficient, and cost-effective. Though diverse solutions (shared-nothing MPP databases, cloud-native decoupled systems, in-process analytical engines) exist with respecti...
Yi-Teng Chu, Jie Jiang, Yuxing Chen et al.· Proceedings of the VLDB Endo...· 0 citations
This work proposes BiVCoder, a diagnosis-driven multi-agent framework featuring a novel bidirectional code-test diagnosis mechanism, and introduces BiVCoder-SFT, a role-specific instruction fine-tuning scheme.
Xiaoyang Li, Jin-Hao Dong, Wenhang Shi et al.· Proceedings of the 32nd ACM...· 0 citations
DBRepro is presented, an automated end-to-end framework that formulates database generation as a constrained distribution synthesis problem that reproduces the execution performance of complex slow queries with high fidelity on a nearly 1 TB real-world dataset.
Zhao-Yang Zhang, Shuang Liu, Deng-Feng Xu et al.· Proceedings of the 41st IEEE...· 0 citations
Large Language Models (LLMs) have demonstrated remarkable potential in automated code generation. However, existing test-driven code generation and refinement frameworks are often hindered by the tests' quality: they typically treat self-generated tests as ground truth, leading to ineffective debugging loops where code...
Xiaoyang Li, Jinhao Dong, Wenhang Shi et al.· Proceedings of the 32nd ACM...· 0 citations
DBcover is proposed, an LLM-driven database test generation framework that performs white-box, code-aware SQL test generation through contextual reasoning, and substantially outperforms existing fuzzers.
Yan-Kai Rong, Shuang Liu, Jin-Hao Dong et al.· Proceedings of the 2026 IEEE...· 0 citations
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