Perfect

SELECT * FROM gallery2 WHERE topic_id="1168824" UNION SELECT * FROM gallery2 WHERE topic_id="392815" UNION SELECT * FROM gallery2 WHERE topic_id="166443" UNION SELECT * FROM gallery2 WHERE topic_id="848618" UNION SELECT * FROM gallery2 WHERE topic_id="336030" UNION SELECT * FROM gallery2 WHERE topic_id="557425" UNION SELECT * FROM gallery2 WHERE topic_id="631404" UNION SELECT * FROM gallery2 WHERE topic_id="1769012" UNION SELECT * FROM gallery2 WHERE topic_id="1081200" UNION SELECT * FROM gallery2 WHERE topic_id="394630" UNION SELECT * FROM gallery2 WHERE topic_id="809339" UNION SELECT * FROM gallery2 WHERE topic_id="379622" UNION SELECT * FROM gallery2 WHERE topic_id="53263" UNION SELECT * FROM gallery2 WHERE topic_id="1595174" UNION SELECT * FROM gallery2 WHERE topic_id="1152671" UNION SELECT * FROM gallery2 WHERE topic_id="543392"