Elegant

SELECT * FROM gallery2 WHERE topic_id="1542346" UNION SELECT * FROM gallery2 WHERE topic_id="868369" UNION SELECT * FROM gallery2 WHERE topic_id="1030191" UNION SELECT * FROM gallery2 WHERE topic_id="1364201" UNION SELECT * FROM gallery2 WHERE topic_id="1339174" UNION SELECT * FROM gallery2 WHERE topic_id="1751303" UNION SELECT * FROM gallery2 WHERE topic_id="785359" UNION SELECT * FROM gallery2 WHERE topic_id="829751" UNION SELECT * FROM gallery2 WHERE topic_id="1784475" UNION SELECT * FROM gallery2 WHERE topic_id="1239819" UNION SELECT * FROM gallery2 WHERE topic_id="933260" UNION SELECT * FROM gallery2 WHERE topic_id="372073" UNION SELECT * FROM gallery2 WHERE topic_id="1357443" UNION SELECT * FROM gallery2 WHERE topic_id="176565" UNION SELECT * FROM gallery2 WHERE topic_id="1692945" UNION SELECT * FROM gallery2 WHERE topic_id="422032"