Speed

SELECT * FROM gallery2 WHERE topic_id="960761" UNION SELECT * FROM gallery2 WHERE topic_id="342822" UNION SELECT * FROM gallery2 WHERE topic_id="185120" UNION SELECT * FROM gallery2 WHERE topic_id="55206" UNION SELECT * FROM gallery2 WHERE topic_id="783494" UNION SELECT * FROM gallery2 WHERE topic_id="1309994" UNION SELECT * FROM gallery2 WHERE topic_id="572740" UNION SELECT * FROM gallery2 WHERE topic_id="169373" UNION SELECT * FROM gallery2 WHERE topic_id="621900" UNION SELECT * FROM gallery2 WHERE topic_id="1693811" UNION SELECT * FROM gallery2 WHERE topic_id="345180" UNION SELECT * FROM gallery2 WHERE topic_id="1561584" UNION SELECT * FROM gallery2 WHERE topic_id="264825" UNION SELECT * FROM gallery2 WHERE topic_id="741499" UNION SELECT * FROM gallery2 WHERE topic_id="353826" UNION SELECT * FROM gallery2 WHERE topic_id="1137492"