2 papers
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.LG2025
Graph-Reward-SQL: Execution-Free Reinforcement Learning for Text-to-SQL via Graph Matching and Stepwise Reward
Han Weng, Puzhen Wu, Longjie Cui +10
Reinforcement learning (RL) has been widely adopted to enhance the performance of large language models (LLMs) on Text-to-SQL tasks. However, existing methods often rely on executi…