Super tight

SELECT * FROM gallery2 WHERE topic_id="167727" UNION SELECT * FROM gallery2 WHERE topic_id="49911" UNION SELECT * FROM gallery2 WHERE topic_id="169684" UNION SELECT * FROM gallery2 WHERE topic_id="1496334" UNION SELECT * FROM gallery2 WHERE topic_id="1733232" UNION SELECT * FROM gallery2 WHERE topic_id="745574" UNION SELECT * FROM gallery2 WHERE topic_id="206193" UNION SELECT * FROM gallery2 WHERE topic_id="289660" UNION SELECT * FROM gallery2 WHERE topic_id="277228" UNION SELECT * FROM gallery2 WHERE topic_id="764828" UNION SELECT * FROM gallery2 WHERE topic_id="1802341" UNION SELECT * FROM gallery2 WHERE topic_id="813329" UNION SELECT * FROM gallery2 WHERE topic_id="1449039" UNION SELECT * FROM gallery2 WHERE topic_id="468786" UNION SELECT * FROM gallery2 WHERE topic_id="734442" UNION SELECT * FROM gallery2 WHERE topic_id="157630"