Making a mess

SELECT * FROM gallery2 WHERE topic_id="100179" UNION SELECT * FROM gallery2 WHERE topic_id="20894" UNION SELECT * FROM gallery2 WHERE topic_id="1654861" UNION SELECT * FROM gallery2 WHERE topic_id="135856" UNION SELECT * FROM gallery2 WHERE topic_id="1066910" UNION SELECT * FROM gallery2 WHERE topic_id="60631" UNION SELECT * FROM gallery2 WHERE topic_id="742888" UNION SELECT * FROM gallery2 WHERE topic_id="871583" UNION SELECT * FROM gallery2 WHERE topic_id="1209085" UNION SELECT * FROM gallery2 WHERE topic_id="284491" UNION SELECT * FROM gallery2 WHERE topic_id="782970" UNION SELECT * FROM gallery2 WHERE topic_id="1424415" UNION SELECT * FROM gallery2 WHERE topic_id="153694" UNION SELECT * FROM gallery2 WHERE topic_id="1375006" UNION SELECT * FROM gallery2 WHERE topic_id="1312771" UNION SELECT * FROM gallery2 WHERE topic_id="166270"