本课内容目前为英文。
Keep Postgres healthy
MVCC leaves old row versions behind on every update and delete. VACUUM cleans them up, and a handful of system views tell you which tables and queries need your attention.
本课内容目前为英文。
MVCC leaves old row versions behind on every update and delete. VACUUM cleans them up, and a handful of system views tell you which tables and queries need your attention.