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![PostgreSQL: Documentation: 9.4: VACUUM - PostgreSQL: The world's most advanced open source database](https://www.iarticlesnet.com/pub/img/site/s_20.jpeg)
PostgreSQL: Documentation: 9.4: VACUUM - PostgreSQL: The world's most advanced open source database
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日期:2024-07-23
Description VACUUM reclaims storage occupied by dead tuples. In normal PostgreSQL operation, tuples that are deleted or obsoleted by an update are not physically removed from their table; they remain present until a VACUUM is done. Therefore it's necessar...看更多