有趣的优化
原文英文，约700词，阅读约需3分钟。发表于：。Introduction # I recently encountered an intriguing bug. A user reported that their query was causing vtgate to fetch a large amount of data, sometimes resulting in an Out Of Memory (OOM) error....
这篇文章讲述了一个有趣的错误，用户报告查询导致vtgate获取大量数据，导致内存溢出错误。作者通过优化查询计划，将聚合操作下推到MySQL，提高了查询性能和资源利用率。这个优化展示了查询规划的复杂性和高效树重写在Vitess中的重要性。
