{"Entry":{"collection":"metric","key":"pg_stat_user_tables-last_vacuum","name":"pg_stat_user_tables.last_vacuum","aliases":["last_vacuum","pg_stat_user_tables"],"metadata":{"aliases":["last_vacuum","pg_stat_user_tables"],"category":"pg_stat_user_tables","content_hash":"4bb463823f41094a2faa20022482806ff8c08099b3701349b690fa8dcb0f2fb9","derived_content_hash":"1ba2f01baf6c5961e4ee91fe5d91a40e0ca0b2608833ba7f654031120fedff75","imported_at":"2026-09-30T00:40:46.418915+08:00","name":"pg_stat_user_tables.last_vacuum","name_zh":"","slug":"pg_stat_user_tables-last_vacuum","summary":"Last time at which this table was manually vacuumed (not counting VACUUM FULL)"}},"Definition":{"Collection":"metric","Key":"pg_stat_user_tables-last_vacuum","SourceDatabase":"center","Version":"18","SourceTable":"statistics_metric","SourceKey":"pg_stat_user_tables-last_vacuum","SourceRevision":"555610c24d53e4316da5b7d3fc25c279d96856d5e0e23ee308c328c5fa881d9f","Facts":{"comparison_data":{"field":"last_vacuum","sql_type":"timestamp with time zone","units_mentioned":[],"view":"pg_stat_user_tables"},"comparison_hash":"8dfe273baae35873f9ec56a9639707530fdbbd095d5502f3b3cda69d0ece1869","description":["Last time at which this table was manually vacuumed (not counting VACUUM FULL)"],"description_zh":"最后一次手动清理这个表的时间（不包括 VACUUM FULL）","description_zh_html":"\u003cp\u003epg_stat_user_tables.last_vacuum 统计字段。\u003c/p\u003e\u003cdl\u003e\u003cdt\u003e视图\u003c/dt\u003e\u003cdd\u003e\u003ccode\u003epg_stat_user_tables\u003c/code\u003e\u003c/dd\u003e\u003cdt\u003e字段\u003c/dt\u003e\u003cdd\u003e\u003ccode\u003elast_vacuum\u003c/code\u003e\u003c/dd\u003e\u003cdt\u003eSQL 类型\u003c/dt\u003e\u003cdd\u003e\u003ccode\u003etimestamp with time zone\u003c/code\u003e\u003c/dd\u003e\u003c/dl\u003e\u003ch3\u003e同版本中文手册定义\u003c/h3\u003e\u003cp\u003e最后一次手动清理这个表的时间（不包括 VACUUM FULL）\u003c/p\u003e\u003cp\u003e\u003ca href=\"/zh/docs/18/monitoring-stats.html#\"\u003e查看完整中文手册与上下文\u003c/a\u003e。\u003c/p\u003e","documented":true,"facts":[{"label":"View","value":"pg_stat_user_tables"},{"label":"Field","value":"last_vacuum"},{"label":"SQL type","value":"timestamp with time zone"},{"label":"Units named in the field definition","value":"Not specified"},{"label":"Reset observation","value":"No stats_reset field is documented for this view"}],"facts_zh":[{"label":"视图","value":"pg_stat_user_tables"},{"label":"字段","value":"last_vacuum"},{"label":"SQL 类型","value":"timestamp with time zone"},{"label":"字段定义记载的单位","value":"未指定"},{"label":"重置条件","value":"手册未为此视图记载 stats_reset 字段"}],"field":"last_vacuum","manual_html":"","manual_path":"/docs/18/monitoring-stats.html","related":[{"label":"pg_stat_user_tables columns","url":"/wiki/catalog/pg_stat_user_tables/?v=18"},{"label":"Statistics collection and reset functions","url":"/docs/18/monitoring-stats.html"}],"release":{"channel":"stable","label":"18.6","major":"18","ref":"https://ftp.postgresql.org/pub/source/v18.6/postgresql-18.6.tar.bz2","revision":"555610c24d53e4316da5b7d3fc25c279d96856d5e0e23ee308c328c5fa881d9f"},"sections":[{"paragraphs":["Same as pg_stat_all_tables, except that only user tables are shown."],"title":"View semantics"},{"paragraphs":["Read the same-version statistics collection and view documentation below for reset scope and visibility. 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