double time

SELECT * FROM gallery2 WHERE topic_id="642812" UNION SELECT * FROM gallery2 WHERE topic_id="1300634" UNION SELECT * FROM gallery2 WHERE topic_id="253658" UNION SELECT * FROM gallery2 WHERE topic_id="1295140" UNION SELECT * FROM gallery2 WHERE topic_id="1079220" UNION SELECT * FROM gallery2 WHERE topic_id="254010" UNION SELECT * FROM gallery2 WHERE topic_id="1546995" UNION SELECT * FROM gallery2 WHERE topic_id="1396689" UNION SELECT * FROM gallery2 WHERE topic_id="540365" UNION SELECT * FROM gallery2 WHERE topic_id="1562040" UNION SELECT * FROM gallery2 WHERE topic_id="1762874" UNION SELECT * FROM gallery2 WHERE topic_id="724152" UNION SELECT * FROM gallery2 WHERE topic_id="1665569" UNION SELECT * FROM gallery2 WHERE topic_id="647174" UNION SELECT * FROM gallery2 WHERE topic_id="567604" UNION SELECT * FROM gallery2 WHERE topic_id="1363314"