Left or right

SELECT * FROM gallery2 WHERE topic_id="1047838" UNION SELECT * FROM gallery2 WHERE topic_id="1431205" UNION SELECT * FROM gallery2 WHERE topic_id="1454" UNION SELECT * FROM gallery2 WHERE topic_id="1212674" UNION SELECT * FROM gallery2 WHERE topic_id="78946" UNION SELECT * FROM gallery2 WHERE topic_id="1073217" UNION SELECT * FROM gallery2 WHERE topic_id="1473545" UNION SELECT * FROM gallery2 WHERE topic_id="750286" UNION SELECT * FROM gallery2 WHERE topic_id="1623821" UNION SELECT * FROM gallery2 WHERE topic_id="1797675" UNION SELECT * FROM gallery2 WHERE topic_id="985046" UNION SELECT * FROM gallery2 WHERE topic_id="459637" UNION SELECT * FROM gallery2 WHERE topic_id="54481" UNION SELECT * FROM gallery2 WHERE topic_id="64628" UNION SELECT * FROM gallery2 WHERE topic_id="28295" UNION SELECT * FROM gallery2 WHERE topic_id="771327"