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SELECT, d.parent, d.item, d.type, d.customer, d.pub_date, d.topic, d.pub_text, c.login, c.F, c.I, c.O, u.login AS user FROM spr_discussions d LEFT JOIN spr_customers c ON LEFT JOIN spr_users u ON u.login=c.login WHERE d.item=12733 AND d.type=1 AND d.parent IS NULL AND d.trash=0 ORDER BY d.pub_date ASC LIMIT -20,20