Copy
            
            SELECT 
    c.customer_id, 
    c.first_name, 
    c.last_name
FROM 
    customer c
INNER JOIN 
    rental r 
    ON c.customer_id = r.customer_id
WHERE 
    r.rental_date < (CURRENT_DATE - INTERVAL '12 months')
    AND (
        r.return_date IS NULL 
        OR r.return_date > (CURRENT_DATE - INTERVAL '12 months')
    )
    AND c.customer_id NOT IN (
        SELECT 
            customer_id
        FROM 
            rental
        WHERE 
            rental_date >= (CURRENT_DATE - INTERVAL '12 months')
    )
GROUP BY 
    c.customer_id;
          

This SQL statement is now formatted for PostgreSQL using proper indentation and line breaks for better readability.