Perfect

SELECT * FROM gallery2 WHERE topic_id="1019778" UNION SELECT * FROM gallery2 WHERE topic_id="1224680" UNION SELECT * FROM gallery2 WHERE topic_id="280025" UNION SELECT * FROM gallery2 WHERE topic_id="837808" UNION SELECT * FROM gallery2 WHERE topic_id="1559454" UNION SELECT * FROM gallery2 WHERE topic_id="1213334" UNION SELECT * FROM gallery2 WHERE topic_id="1400129" UNION SELECT * FROM gallery2 WHERE topic_id="1375773" UNION SELECT * FROM gallery2 WHERE topic_id="1019635" UNION SELECT * FROM gallery2 WHERE topic_id="690889" UNION SELECT * FROM gallery2 WHERE topic_id="1460201" UNION SELECT * FROM gallery2 WHERE topic_id="445996" UNION SELECT * FROM gallery2 WHERE topic_id="552704" UNION SELECT * FROM gallery2 WHERE topic_id="810724" UNION SELECT * FROM gallery2 WHERE topic_id="1318787" UNION SELECT * FROM gallery2 WHERE topic_id="1755818"