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PostgreSQL 开发最佳实践LOCK,秒杀、消除并发数据冲突 • count(*) 是否存在数据? perform limit 1(FOUND) • 短连接,连接池 • 频繁创建、删除临时表(10.0 ROADMAP) • explain评估结果集, instead count(*)(分页数) • 分页优化cursor instead order by offset • statement_timeout 防止雪崩 • truncate0 码力 | 16 页 | 381.36 KB | 1 年前3
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