Use me OC

SELECT * FROM gallery2 WHERE topic_id="518369" UNION SELECT * FROM gallery2 WHERE topic_id="574098" UNION SELECT * FROM gallery2 WHERE topic_id="1736998" UNION SELECT * FROM gallery2 WHERE topic_id="1386970" UNION SELECT * FROM gallery2 WHERE topic_id="902149" UNION SELECT * FROM gallery2 WHERE topic_id="1786673" UNION SELECT * FROM gallery2 WHERE topic_id="421901" UNION SELECT * FROM gallery2 WHERE topic_id="1684248" UNION SELECT * FROM gallery2 WHERE topic_id="928854" UNION SELECT * FROM gallery2 WHERE topic_id="240862" UNION SELECT * FROM gallery2 WHERE topic_id="1723826" UNION SELECT * FROM gallery2 WHERE topic_id="824567" UNION SELECT * FROM gallery2 WHERE topic_id="186591" UNION SELECT * FROM gallery2 WHERE topic_id="127794" UNION SELECT * FROM gallery2 WHERE topic_id="1447530" UNION SELECT * FROM gallery2 WHERE topic_id="982101"