Just a classic compare

SELECT * FROM gallery2 WHERE topic_id="421060" UNION SELECT * FROM gallery2 WHERE topic_id="1717727" UNION SELECT * FROM gallery2 WHERE topic_id="1039149" UNION SELECT * FROM gallery2 WHERE topic_id="697287" UNION SELECT * FROM gallery2 WHERE topic_id="1136477" UNION SELECT * FROM gallery2 WHERE topic_id="1319180" UNION SELECT * FROM gallery2 WHERE topic_id="593757" UNION SELECT * FROM gallery2 WHERE topic_id="1651528" UNION SELECT * FROM gallery2 WHERE topic_id="1530301" UNION SELECT * FROM gallery2 WHERE topic_id="590466" UNION SELECT * FROM gallery2 WHERE topic_id="1045115" UNION SELECT * FROM gallery2 WHERE topic_id="359244" UNION SELECT * FROM gallery2 WHERE topic_id="61745" UNION SELECT * FROM gallery2 WHERE topic_id="1700702" UNION SELECT * FROM gallery2 WHERE topic_id="1227118" UNION SELECT * FROM gallery2 WHERE topic_id="893085"