Yor

SELECT * FROM gallery2 WHERE topic_id="515888" UNION SELECT * FROM gallery2 WHERE topic_id="1806907" UNION SELECT * FROM gallery2 WHERE topic_id="1719883" UNION SELECT * FROM gallery2 WHERE topic_id="1007328" UNION SELECT * FROM gallery2 WHERE topic_id="1791660" UNION SELECT * FROM gallery2 WHERE topic_id="439179" UNION SELECT * FROM gallery2 WHERE topic_id="1344291" UNION SELECT * FROM gallery2 WHERE topic_id="1391010" UNION SELECT * FROM gallery2 WHERE topic_id="276651" UNION SELECT * FROM gallery2 WHERE topic_id="796134" UNION SELECT * FROM gallery2 WHERE topic_id="1240149" UNION SELECT * FROM gallery2 WHERE topic_id="72525" UNION SELECT * FROM gallery2 WHERE topic_id="381106" UNION SELECT * FROM gallery2 WHERE topic_id="97050" UNION SELECT * FROM gallery2 WHERE topic_id="1562769" UNION SELECT * FROM gallery2 WHERE topic_id="1210411"