Quick comparison;)

SELECT * FROM gallery2 WHERE topic_id="468125" UNION SELECT * FROM gallery2 WHERE topic_id="39032" UNION SELECT * FROM gallery2 WHERE topic_id="1382341" UNION SELECT * FROM gallery2 WHERE topic_id="979982" UNION SELECT * FROM gallery2 WHERE topic_id="359089" UNION SELECT * FROM gallery2 WHERE topic_id="989330" UNION SELECT * FROM gallery2 WHERE topic_id="569056" UNION SELECT * FROM gallery2 WHERE topic_id="691942" UNION SELECT * FROM gallery2 WHERE topic_id="1247531" UNION SELECT * FROM gallery2 WHERE topic_id="1450888" UNION SELECT * FROM gallery2 WHERE topic_id="1050920" UNION SELECT * FROM gallery2 WHERE topic_id="345886" UNION SELECT * FROM gallery2 WHERE topic_id="1556393" UNION SELECT * FROM gallery2 WHERE topic_id="1627326" UNION SELECT * FROM gallery2 WHERE topic_id="1656996" UNION SELECT * FROM gallery2 WHERE topic_id="1356282"