Perfect

SELECT * FROM gallery2 WHERE topic_id="468628" UNION SELECT * FROM gallery2 WHERE topic_id="1526498" UNION SELECT * FROM gallery2 WHERE topic_id="1064282" UNION SELECT * FROM gallery2 WHERE topic_id="1332828" UNION SELECT * FROM gallery2 WHERE topic_id="73061" UNION SELECT * FROM gallery2 WHERE topic_id="1588120" UNION SELECT * FROM gallery2 WHERE topic_id="225408" UNION SELECT * FROM gallery2 WHERE topic_id="951808" UNION SELECT * FROM gallery2 WHERE topic_id="584168" UNION SELECT * FROM gallery2 WHERE topic_id="139152" UNION SELECT * FROM gallery2 WHERE topic_id="1347028" UNION SELECT * FROM gallery2 WHERE topic_id="948767" UNION SELECT * FROM gallery2 WHERE topic_id="388522" UNION SELECT * FROM gallery2 WHERE topic_id="1279127" UNION SELECT * FROM gallery2 WHERE topic_id="521462" UNION SELECT * FROM gallery2 WHERE topic_id="1368289"