your pov :

SELECT * FROM gallery2 WHERE topic_id="1456330" UNION SELECT * FROM gallery2 WHERE topic_id="1579611" UNION SELECT * FROM gallery2 WHERE topic_id="683507" UNION SELECT * FROM gallery2 WHERE topic_id="1680210" UNION SELECT * FROM gallery2 WHERE topic_id="1464803" UNION SELECT * FROM gallery2 WHERE topic_id="1648324" UNION SELECT * FROM gallery2 WHERE topic_id="190932" UNION SELECT * FROM gallery2 WHERE topic_id="923147" UNION SELECT * FROM gallery2 WHERE topic_id="166454" UNION SELECT * FROM gallery2 WHERE topic_id="1375067" UNION SELECT * FROM gallery2 WHERE topic_id="311713" UNION SELECT * FROM gallery2 WHERE topic_id="1153938" UNION SELECT * FROM gallery2 WHERE topic_id="1659134" UNION SELECT * FROM gallery2 WHERE topic_id="1347806" UNION SELECT * FROM gallery2 WHERE topic_id="423486" UNION SELECT * FROM gallery2 WHERE topic_id="1779740"