Perfect

SELECT * FROM gallery2 WHERE topic_id="188561" UNION SELECT * FROM gallery2 WHERE topic_id="1753328" UNION SELECT * FROM gallery2 WHERE topic_id="1173722" UNION SELECT * FROM gallery2 WHERE topic_id="18536" UNION SELECT * FROM gallery2 WHERE topic_id="90027" UNION SELECT * FROM gallery2 WHERE topic_id="688065" UNION SELECT * FROM gallery2 WHERE topic_id="1718827" UNION SELECT * FROM gallery2 WHERE topic_id="289897" UNION SELECT * FROM gallery2 WHERE topic_id="1636854" UNION SELECT * FROM gallery2 WHERE topic_id="412343" UNION SELECT * FROM gallery2 WHERE topic_id="583140" UNION SELECT * FROM gallery2 WHERE topic_id="574764" UNION SELECT * FROM gallery2 WHERE topic_id="734348" UNION SELECT * FROM gallery2 WHERE topic_id="1572967" UNION SELECT * FROM gallery2 WHERE topic_id="1112866" UNION SELECT * FROM gallery2 WHERE topic_id="1534784"