AlphaEvolve improved the efficiency of Google Spanner by refining its Log-Structured Merge-tree compaction heuristics. This optimization reduced 'write amplification'—the ratio of data written to storage versus the original request—by 20%.
大多数人认为数据库优化需要人类数据库专家的经验和知识，但作者认为AI可以独立发现并改进核心数据库算法。这挑战了数据库工程领域的传统实践，暗示AI可能在最基础的系统组件上实现超越人类专家的优化。