for cmd in `psql -U用戶名 -p端口號 -h連接串 -d數(shù)據(jù)庫名 -c "SELECT 'vacuum freeze '||c.oid::regclass||';' as vacuum_cmd FROM pg_class c LEFT JOIN pg_class t ON c.reltoastrelid = t.oid WHERE c.relkind IN ('r', 'm') order by greatest(age(c.relfrozenxid),age(t.rel...