semab tariq: 触发PostgreSQL自动清理的场景
原文英文,约1700词,阅读约需6分钟。发表于: 。PostgreSQL is widely known for its Multi-Version Concurrency Control (MVCC) model, which allows multiple transactions to occur simultaneously without interfering with each other. However, one...
PostgreSQL的自动清理机制autovacuum用于处理死元组和表膨胀,确保数据库性能。它自动运行,无需用户干预,但在某些情况下可能不够及时,此时可手动执行清理。合理配置可优化数据库维护。