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sudo -u postgres psql -Atc 'SELECT EXTRACT(EPOCH FROM (now() - pg_last_xact_replay_timestamp()))::INT;'
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Size: a a a
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show hot_standby_feedback;
на реплике ?AG
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DA
SELECT * FROM users u ... ORDER BY u.created_at DESC LIMIT 5
UNION ALL
SELECT * FROM users u ORDER BY (SELECT COUNT(*) FROM followers ...) DESC
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SELECT * FROM users u ... ORDER BY u.created_at DESC LIMIT 5
UNION ALL
SELECT * FROM users u ORDER BY (SELECT COUNT(*) FROM followers ...) DESC
DA
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