https://answer.freetools.me/tags/%E7%B4%A2%E5%BC%95/ Recent content in 索引 on Answer Hugo -- 0.152.2 zh-cn Sat, 21 Mar 2026 08:41:48 +0800 https://answer.freetools.me/%E4%BB%A3%E7%A0%81%E6%90%9C%E7%B4%A2%E5%BC%95%E6%93%8E%E5%A6%82%E4%BD%95%E5%9C%A8%E6%AF%AB%E7%A7%92%E7%BA%A7%E9%81%8D%E5%8E%86%E7%99%BE%E4%B8%87%E8%A1%8C%E4%BB%A3%E7%A0%81%E4%BB%8E%E6%AD%A3%E5%88%99%E5%BC%95%E6%93%8E%E9%9D%A9%E5%91%BD%E5%88%B0trigram%E7%B4%A2%E5%BC%95%E7%9A%84%E6%8A%80%E6%9C%AF%E7%AA%81%E5%9B%B4/ Sat, 21 Mar 2026 08:41:48 +0800 https://answer.freetools.me/%E4%BB%A3%E7%A0%81%E6%90%9C%E7%B4%A2%E5%BC%95%E6%93%8E%E5%A6%82%E4%BD%95%E5%9C%A8%E6%AF%AB%E7%A7%92%E7%BA%A7%E9%81%8D%E5%8E%86%E7%99%BE%E4%B8%87%E8%A1%8C%E4%BB%A3%E7%A0%81%E4%BB%8E%E6%AD%A3%E5%88%99%E5%BC%95%E6%93%8E%E9%9D%A9%E5%91%BD%E5%88%B0trigram%E7%B4%A2%E5%BC%95%E7%9A%84%E6%8A%80%E6%9C%AF%E7%AA%81%E5%9B%B4/ 深入解析现代代码搜索技术的底层原理：从ripgrep利用SIMD指令和非回溯引擎实现的百倍性能提升，到企业级工具通过Trigram索引将正则查询转化为集合运算的架构智慧。涵盖Thompson NFA、有限状态机、倒排索引与Rabin指纹等核心技术，揭示代码搜索如何突破传统文本匹配的物理极限。 https://answer.freetools.me/b-%E6%A0%91%E7%B4%A2%E5%BC%95%E7%9A%84%E9%A1%B5%E5%88%86%E8%A3%82%E4%BB%8E%E9%A1%BA%E5%BA%8F%E6%8F%92%E5%85%A5%E7%9A%84%E4%BC%98%E9%9B%85%E5%88%B0%E9%9A%8F%E6%9C%BA%E5%86%99%E5%85%A5%E7%9A%84%E4%BB%A3%E4%BB%B7/ Sat, 07 Mar 2026 06:54:38 +0800 https://answer.freetools.me/b-%E6%A0%91%E7%B4%A2%E5%BC%95%E7%9A%84%E9%A1%B5%E5%88%86%E8%A3%82%E4%BB%8E%E9%A1%BA%E5%BA%8F%E6%8F%92%E5%85%A5%E7%9A%84%E4%BC%98%E9%9B%85%E5%88%B0%E9%9A%8F%E6%9C%BA%E5%86%99%E5%85%A5%E7%9A%84%E4%BB%A3%E4%BB%B7/ 深入解析数据库B+树索引页分裂的底层机制。从InnoDB的页面组织结构出发，详细分析顺序插入与随机插入产生的截然不同的页分裂行为，揭示UUID主键导致性能下降的根本原因，并对比不同数据库实现（MySQL、PostgreSQL、SQL Server、DB2）的分裂策略差异。