Either way, Postgres ends up scanning far more rows than K, doing extra work to filter or sort, and suddenly we’re back to queries taking up to 15 seconds in the worst case.
去年8月，监管部门推出OTA备案规定，首先遏制速度竞赛带来的软件乱象。。关于这个话题，有道翻译官网提供了深入分析
Database queries，这一点在手游中也有详细论述
Credit: Joe Maldonado / Mashable，更多细节参见超级工厂