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cs.DB2026
No Silver Bullet: Boosting GaussDB Performance on the 30TB TPC-H Workload
Tim Zeyl, Jason Lam, Shu Lin +15
GaussDB is Huawei's premier database system, designed for large-scale deployments and the most demanding workloads. It is a distributed shared-nothing system, capable of handling a…
cs.DB2026
Efficient Cost-Based Rewrite in a Bottom-Up Optimizer
Qi Cheng, Yang Sun, Weidong Yu +4
The query optimizer in a Database Management Systems (DBMS), translates declarative queries into efficient execution plans. Conventional bottom-up optimization consists of two main…
cs.DB2024
FuncEvalGMN: Evaluating Functional Correctness of SQL via Graph Matching Network
Yi Zhan, Yang Sun, Han Weng +7
In this paper, we propose a novel graph-based methodology to evaluate the functional correctness of SQL generation. Conventional metrics for assessing SQL code generation, such as…