Tight

SELECT * FROM gallery2 WHERE topic_id="151766" UNION SELECT * FROM gallery2 WHERE topic_id="1549168" UNION SELECT * FROM gallery2 WHERE topic_id="1333781" UNION SELECT * FROM gallery2 WHERE topic_id="1043982" UNION SELECT * FROM gallery2 WHERE topic_id="794924" UNION SELECT * FROM gallery2 WHERE topic_id="534397" UNION SELECT * FROM gallery2 WHERE topic_id="1807318" UNION SELECT * FROM gallery2 WHERE topic_id="1728323" UNION SELECT * FROM gallery2 WHERE topic_id="1504600" UNION SELECT * FROM gallery2 WHERE topic_id="237246" UNION SELECT * FROM gallery2 WHERE topic_id="83475" UNION SELECT * FROM gallery2 WHERE topic_id="785499" UNION SELECT * FROM gallery2 WHERE topic_id="158517" UNION SELECT * FROM gallery2 WHERE topic_id="1612714" UNION SELECT * FROM gallery2 WHERE topic_id="1125284" UNION SELECT * FROM gallery2 WHERE topic_id="1366150"