Этот урок пока на английском.
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.
Этот урок пока на английском.
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.