<?xml version="1.0" encoding="utf-8" standalone="yes"?><rss version="2.0" xmlns:atom="http://www.w3.org/2005/Atom" xmlns:content="http://purl.org/rss/1.0/modules/content/"><channel><title>后端 on 梦兽编程</title><link>https://rexai.top/categories/%E5%90%8E%E7%AB%AF/</link><description>Recent content in 后端 on 梦兽编程</description><generator>Hugo -- 0.161.1</generator><language>zh-cn</language><copyright>梦兽编程</copyright><lastBuildDate>Sat, 21 Mar 2026 00:00:00 +0000</lastBuildDate><atom:link href="https://rexai.top/categories/%E5%90%8E%E7%AB%AF/index.xml" rel="self" type="application/rss+xml"/><item><title>别再骂数据库慢了，是你的分页在拖后腿</title><link>https://rexai.top/posts/2026-03-21-database-pagination-myth/</link><pubDate>Sat, 21 Mar 2026 00:00:00 +0000</pubDate><guid>https://rexai.top/posts/2026-03-21-database-pagination-myth/</guid><description>你的数据库跑不快？别急着升级配置，先看看分页写法对不对。OFFSET 在第 500 页时的开销可能是第 1 页的数百倍，而这个锅数据库不背。</description></item></channel></rss>