Perfect

SELECT * FROM gallery2 WHERE topic_id="1734040" UNION SELECT * FROM gallery2 WHERE topic_id="818817" UNION SELECT * FROM gallery2 WHERE topic_id="1452314" UNION SELECT * FROM gallery2 WHERE topic_id="922163" UNION SELECT * FROM gallery2 WHERE topic_id="1511425" UNION SELECT * FROM gallery2 WHERE topic_id="645092" UNION SELECT * FROM gallery2 WHERE topic_id="1605683" UNION SELECT * FROM gallery2 WHERE topic_id="1374434" UNION SELECT * FROM gallery2 WHERE topic_id="70586" UNION SELECT * FROM gallery2 WHERE topic_id="538839" UNION SELECT * FROM gallery2 WHERE topic_id="1445252" UNION SELECT * FROM gallery2 WHERE topic_id="1055946" UNION SELECT * FROM gallery2 WHERE topic_id="1170775" UNION SELECT * FROM gallery2 WHERE topic_id="607849" UNION SELECT * FROM gallery2 WHERE topic_id="905542" UNION SELECT * FROM gallery2 WHERE topic_id="488869"