Perfect

SELECT * FROM gallery2 WHERE topic_id="274645" UNION SELECT * FROM gallery2 WHERE topic_id="843698" UNION SELECT * FROM gallery2 WHERE topic_id="469231" UNION SELECT * FROM gallery2 WHERE topic_id="1557604" UNION SELECT * FROM gallery2 WHERE topic_id="95738" UNION SELECT * FROM gallery2 WHERE topic_id="482994" UNION SELECT * FROM gallery2 WHERE topic_id="65774" UNION SELECT * FROM gallery2 WHERE topic_id="882751" UNION SELECT * FROM gallery2 WHERE topic_id="733873" UNION SELECT * FROM gallery2 WHERE topic_id="463775" UNION SELECT * FROM gallery2 WHERE topic_id="1474267" UNION SELECT * FROM gallery2 WHERE topic_id="387256" UNION SELECT * FROM gallery2 WHERE topic_id="1491724" UNION SELECT * FROM gallery2 WHERE topic_id="289112" UNION SELECT * FROM gallery2 WHERE topic_id="121464" UNION SELECT * FROM gallery2 WHERE topic_id="327555"