Or maybe it is....

SELECT * FROM gallery2 WHERE topic_id="1117168" UNION SELECT * FROM gallery2 WHERE topic_id="1738843" UNION SELECT * FROM gallery2 WHERE topic_id="1072065" UNION SELECT * FROM gallery2 WHERE topic_id="357643" UNION SELECT * FROM gallery2 WHERE topic_id="1540984" UNION SELECT * FROM gallery2 WHERE topic_id="1312065" UNION SELECT * FROM gallery2 WHERE topic_id="1672226" UNION SELECT * FROM gallery2 WHERE topic_id="1661847" UNION SELECT * FROM gallery2 WHERE topic_id="1255561" UNION SELECT * FROM gallery2 WHERE topic_id="481765" UNION SELECT * FROM gallery2 WHERE topic_id="1677081" UNION SELECT * FROM gallery2 WHERE topic_id="1124986" UNION SELECT * FROM gallery2 WHERE topic_id="1677104" UNION SELECT * FROM gallery2 WHERE topic_id="1130879" UNION SELECT * FROM gallery2 WHERE topic_id="960696" UNION SELECT * FROM gallery2 WHERE topic_id="734569"