Perfect

SELECT * FROM gallery2 WHERE topic_id="686593" UNION SELECT * FROM gallery2 WHERE topic_id="1543027" UNION SELECT * FROM gallery2 WHERE topic_id="88368" UNION SELECT * FROM gallery2 WHERE topic_id="234908" UNION SELECT * FROM gallery2 WHERE topic_id="175025" UNION SELECT * FROM gallery2 WHERE topic_id="357765" UNION SELECT * FROM gallery2 WHERE topic_id="1519257" UNION SELECT * FROM gallery2 WHERE topic_id="685981" UNION SELECT * FROM gallery2 WHERE topic_id="69655" UNION SELECT * FROM gallery2 WHERE topic_id="374090" UNION SELECT * FROM gallery2 WHERE topic_id="32992" UNION SELECT * FROM gallery2 WHERE topic_id="619624" UNION SELECT * FROM gallery2 WHERE topic_id="1216997" UNION SELECT * FROM gallery2 WHERE topic_id="855442" UNION SELECT * FROM gallery2 WHERE topic_id="1568132" UNION SELECT * FROM gallery2 WHERE topic_id="1792757"