Letting it hang

SELECT * FROM gallery2 WHERE topic_id="938594" UNION SELECT * FROM gallery2 WHERE topic_id="1010705" UNION SELECT * FROM gallery2 WHERE topic_id="1284839" UNION SELECT * FROM gallery2 WHERE topic_id="926346" UNION SELECT * FROM gallery2 WHERE topic_id="565820" UNION SELECT * FROM gallery2 WHERE topic_id="1167000" UNION SELECT * FROM gallery2 WHERE topic_id="865204" UNION SELECT * FROM gallery2 WHERE topic_id="413294" UNION SELECT * FROM gallery2 WHERE topic_id="1331516" UNION SELECT * FROM gallery2 WHERE topic_id="978981" UNION SELECT * FROM gallery2 WHERE topic_id="1017164" UNION SELECT * FROM gallery2 WHERE topic_id="1632977" UNION SELECT * FROM gallery2 WHERE topic_id="676625" UNION SELECT * FROM gallery2 WHERE topic_id="1138059" UNION SELECT * FROM gallery2 WHERE topic_id="1052911" UNION SELECT * FROM gallery2 WHERE topic_id="77012"