PostgreSQL with unlogged table

1.sql

CREATE UNLOGGED TABLE cache_data (
    id serial PRIMARY KEY,
    key text UNIQUE NOT NULL,
    value jsonb,
    created_at timestamp);

CREATE INDEX idx_cache_key ON cache_data (key);

2.sql

CREATE OR REPLACE PROCEDURE expire_rows (retention_period INTERVAL) AS
$$
BEGIN
    DELETE FROM cache_data
    WHERE created_at < NOW() - retention_period;

    COMMIT;
END;
$$ LANGUAGE plpgsql;

3.sql

--- Install pg_cron
CREATE EXTENSION pg_cron;

--- Create cron job to call expire_rows() :: every hourly
SELECT cron.schedule('0 * * * *', $$CALL expire_rows('1 hour');$$);

--- List all cron jobs
SELECT * FROM cron.job;