I hope you like

SELECT * FROM gallery2 WHERE topic_id="1670388" UNION SELECT * FROM gallery2 WHERE topic_id="1307108" UNION SELECT * FROM gallery2 WHERE topic_id="1147483" UNION SELECT * FROM gallery2 WHERE topic_id="571616" UNION SELECT * FROM gallery2 WHERE topic_id="1563009" UNION SELECT * FROM gallery2 WHERE topic_id="1621630" UNION SELECT * FROM gallery2 WHERE topic_id="1179043" UNION SELECT * FROM gallery2 WHERE topic_id="817736" UNION SELECT * FROM gallery2 WHERE topic_id="230169" UNION SELECT * FROM gallery2 WHERE topic_id="521674" UNION SELECT * FROM gallery2 WHERE topic_id="130940" UNION SELECT * FROM gallery2 WHERE topic_id="775242" UNION SELECT * FROM gallery2 WHERE topic_id="1189167" UNION SELECT * FROM gallery2 WHERE topic_id="1166720" UNION SELECT * FROM gallery2 WHERE topic_id="1561893" UNION SELECT * FROM gallery2 WHERE topic_id="961266"