Boom

SELECT * FROM gallery2 WHERE topic_id="1789806" UNION SELECT * FROM gallery2 WHERE topic_id="414384" UNION SELECT * FROM gallery2 WHERE topic_id="964955" UNION SELECT * FROM gallery2 WHERE topic_id="140829" UNION SELECT * FROM gallery2 WHERE topic_id="1580251" UNION SELECT * FROM gallery2 WHERE topic_id="45856" UNION SELECT * FROM gallery2 WHERE topic_id="814288" UNION SELECT * FROM gallery2 WHERE topic_id="240019" UNION SELECT * FROM gallery2 WHERE topic_id="1638314" UNION SELECT * FROM gallery2 WHERE topic_id="1800743" UNION SELECT * FROM gallery2 WHERE topic_id="577826" UNION SELECT * FROM gallery2 WHERE topic_id="240393" UNION SELECT * FROM gallery2 WHERE topic_id="759517" UNION SELECT * FROM gallery2 WHERE topic_id="630597" UNION SELECT * FROM gallery2 WHERE topic_id="1119102" UNION SELECT * FROM gallery2 WHERE topic_id="1438573"