Convention

SELECT * FROM gallery2 WHERE topic_id="193449" UNION SELECT * FROM gallery2 WHERE topic_id="1079692" UNION SELECT * FROM gallery2 WHERE topic_id="1617476" UNION SELECT * FROM gallery2 WHERE topic_id="1141701" UNION SELECT * FROM gallery2 WHERE topic_id="238965" UNION SELECT * FROM gallery2 WHERE topic_id="61086" UNION SELECT * FROM gallery2 WHERE topic_id="783312" UNION SELECT * FROM gallery2 WHERE topic_id="98117" UNION SELECT * FROM gallery2 WHERE topic_id="1097692" UNION SELECT * FROM gallery2 WHERE topic_id="996221" UNION SELECT * FROM gallery2 WHERE topic_id="961341" UNION SELECT * FROM gallery2 WHERE topic_id="1428858" UNION SELECT * FROM gallery2 WHERE topic_id="903646" UNION SELECT * FROM gallery2 WHERE topic_id="623030" UNION SELECT * FROM gallery2 WHERE topic_id="1729679" UNION SELECT * FROM gallery2 WHERE topic_id="451938"