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PostgreSQL: Documentation: 9.4: VACUUM - PostgreSQL: The world's most advanced open source database
瀏覽：1034
日期：2025-04-27
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
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