I hope someone walks by ;)

SELECT * FROM gallery2 WHERE topic_id="1271691" UNION SELECT * FROM gallery2 WHERE topic_id="1827373" UNION SELECT * FROM gallery2 WHERE topic_id="1595591" UNION SELECT * FROM gallery2 WHERE topic_id="1674255" UNION SELECT * FROM gallery2 WHERE topic_id="1423779" UNION SELECT * FROM gallery2 WHERE topic_id="104116" UNION SELECT * FROM gallery2 WHERE topic_id="1331781" UNION SELECT * FROM gallery2 WHERE topic_id="826057" UNION SELECT * FROM gallery2 WHERE topic_id="1529520" UNION SELECT * FROM gallery2 WHERE topic_id="574128" UNION SELECT * FROM gallery2 WHERE topic_id="1689932" UNION SELECT * FROM gallery2 WHERE topic_id="701041" UNION SELECT * FROM gallery2 WHERE topic_id="449275" UNION SELECT * FROM gallery2 WHERE topic_id="1528704" UNION SELECT * FROM gallery2 WHERE topic_id="44993" UNION SELECT * FROM gallery2 WHERE topic_id="1118319"