I need your load STAT

SELECT * FROM gallery2 WHERE topic_id="1620908" UNION SELECT * FROM gallery2 WHERE topic_id="407108" UNION SELECT * FROM gallery2 WHERE topic_id="538292" UNION SELECT * FROM gallery2 WHERE topic_id="1658762" UNION SELECT * FROM gallery2 WHERE topic_id="644631" UNION SELECT * FROM gallery2 WHERE topic_id="247576" UNION SELECT * FROM gallery2 WHERE topic_id="1176738" UNION SELECT * FROM gallery2 WHERE topic_id="1822157" UNION SELECT * FROM gallery2 WHERE topic_id="893158" UNION SELECT * FROM gallery2 WHERE topic_id="197044" UNION SELECT * FROM gallery2 WHERE topic_id="820504" UNION SELECT * FROM gallery2 WHERE topic_id="1345548" UNION SELECT * FROM gallery2 WHERE topic_id="1402118" UNION SELECT * FROM gallery2 WHERE topic_id="850347" UNION SELECT * FROM gallery2 WHERE topic_id="630334" UNION SELECT * FROM gallery2 WHERE topic_id="100374"