Do-S

SELECT * FROM gallery2 WHERE topic_id="1791096" UNION SELECT * FROM gallery2 WHERE topic_id="47438" UNION SELECT * FROM gallery2 WHERE topic_id="515839" UNION SELECT * FROM gallery2 WHERE topic_id="1343187" UNION SELECT * FROM gallery2 WHERE topic_id="546893" UNION SELECT * FROM gallery2 WHERE topic_id="850656" UNION SELECT * FROM gallery2 WHERE topic_id="14047" UNION SELECT * FROM gallery2 WHERE topic_id="1383774" UNION SELECT * FROM gallery2 WHERE topic_id="554354" UNION SELECT * FROM gallery2 WHERE topic_id="1328460" UNION SELECT * FROM gallery2 WHERE topic_id="1428071" UNION SELECT * FROM gallery2 WHERE topic_id="1095891" UNION SELECT * FROM gallery2 WHERE topic_id="619290" UNION SELECT * FROM gallery2 WHERE topic_id="1302487" UNION SELECT * FROM gallery2 WHERE topic_id="1382286" UNION SELECT * FROM gallery2 WHERE topic_id="723488"