Chain reaction

SELECT * FROM gallery2 WHERE topic_id="1165410" UNION SELECT * FROM gallery2 WHERE topic_id="1040310" UNION SELECT * FROM gallery2 WHERE topic_id="1250215" UNION SELECT * FROM gallery2 WHERE topic_id="1443679" UNION SELECT * FROM gallery2 WHERE topic_id="1451512" UNION SELECT * FROM gallery2 WHERE topic_id="260311" UNION SELECT * FROM gallery2 WHERE topic_id="32420" UNION SELECT * FROM gallery2 WHERE topic_id="1129565" UNION SELECT * FROM gallery2 WHERE topic_id="1290413" UNION SELECT * FROM gallery2 WHERE topic_id="798437" UNION SELECT * FROM gallery2 WHERE topic_id="1374470" UNION SELECT * FROM gallery2 WHERE topic_id="543356" UNION SELECT * FROM gallery2 WHERE topic_id="532375" UNION SELECT * FROM gallery2 WHERE topic_id="203607" UNION SELECT * FROM gallery2 WHERE topic_id="1478458" UNION SELECT * FROM gallery2 WHERE topic_id="851877"