Getting covered by a huge load

SELECT * FROM gallery2 WHERE topic_id="1309126" UNION SELECT * FROM gallery2 WHERE topic_id="1188713" UNION SELECT * FROM gallery2 WHERE topic_id="937024" UNION SELECT * FROM gallery2 WHERE topic_id="600350" UNION SELECT * FROM gallery2 WHERE topic_id="207728" UNION SELECT * FROM gallery2 WHERE topic_id="1057273" UNION SELECT * FROM gallery2 WHERE topic_id="1184951" UNION SELECT * FROM gallery2 WHERE topic_id="1027342" UNION SELECT * FROM gallery2 WHERE topic_id="619260" UNION SELECT * FROM gallery2 WHERE topic_id="1305975" UNION SELECT * FROM gallery2 WHERE topic_id="829672" UNION SELECT * FROM gallery2 WHERE topic_id="1113649" UNION SELECT * FROM gallery2 WHERE topic_id="935888" UNION SELECT * FROM gallery2 WHERE topic_id="1732709" UNION SELECT * FROM gallery2 WHERE topic_id="1319466" UNION SELECT * FROM gallery2 WHERE topic_id="1628921"