simplistic

SELECT * FROM gallery2 WHERE topic_id="811567" UNION SELECT * FROM gallery2 WHERE topic_id="489152" UNION SELECT * FROM gallery2 WHERE topic_id="1154211" UNION SELECT * FROM gallery2 WHERE topic_id="3977" UNION SELECT * FROM gallery2 WHERE topic_id="629815" UNION SELECT * FROM gallery2 WHERE topic_id="1130571" UNION SELECT * FROM gallery2 WHERE topic_id="1231671" UNION SELECT * FROM gallery2 WHERE topic_id="1322360" UNION SELECT * FROM gallery2 WHERE topic_id="925569" UNION SELECT * FROM gallery2 WHERE topic_id="619882" UNION SELECT * FROM gallery2 WHERE topic_id="988176" UNION SELECT * FROM gallery2 WHERE topic_id="519626" UNION SELECT * FROM gallery2 WHERE topic_id="520575" UNION SELECT * FROM gallery2 WHERE topic_id="1393615" UNION SELECT * FROM gallery2 WHERE topic_id="1438857" UNION SELECT * FROM gallery2 WHERE topic_id="1148897"