Update

SELECT * FROM gallery2 WHERE topic_id="1158851" UNION SELECT * FROM gallery2 WHERE topic_id="73068" UNION SELECT * FROM gallery2 WHERE topic_id="1012022" UNION SELECT * FROM gallery2 WHERE topic_id="1058904" UNION SELECT * FROM gallery2 WHERE topic_id="581352" UNION SELECT * FROM gallery2 WHERE topic_id="218458" UNION SELECT * FROM gallery2 WHERE topic_id="1818924" UNION SELECT * FROM gallery2 WHERE topic_id="1095184" UNION SELECT * FROM gallery2 WHERE topic_id="1499489" UNION SELECT * FROM gallery2 WHERE topic_id="640798" UNION SELECT * FROM gallery2 WHERE topic_id="1341958" UNION SELECT * FROM gallery2 WHERE topic_id="1216699" UNION SELECT * FROM gallery2 WHERE topic_id="144799" UNION SELECT * FROM gallery2 WHERE topic_id="782035" UNION SELECT * FROM gallery2 WHERE topic_id="1668279" UNION SELECT * FROM gallery2 WHERE topic_id="1719786"