[2] left or right

SELECT * FROM gallery2 WHERE topic_id="1747870" UNION SELECT * FROM gallery2 WHERE topic_id="1379462" UNION SELECT * FROM gallery2 WHERE topic_id="843773" UNION SELECT * FROM gallery2 WHERE topic_id="1000522" UNION SELECT * FROM gallery2 WHERE topic_id="1572534" UNION SELECT * FROM gallery2 WHERE topic_id="1063489" UNION SELECT * FROM gallery2 WHERE topic_id="1441224" UNION SELECT * FROM gallery2 WHERE topic_id="1772917" UNION SELECT * FROM gallery2 WHERE topic_id="116350" UNION SELECT * FROM gallery2 WHERE topic_id="1280673" UNION SELECT * FROM gallery2 WHERE topic_id="579360" UNION SELECT * FROM gallery2 WHERE topic_id="412803" UNION SELECT * FROM gallery2 WHERE topic_id="1373866" UNION SELECT * FROM gallery2 WHERE topic_id="1130627" UNION SELECT * FROM gallery2 WHERE topic_id="182672" UNION SELECT * FROM gallery2 WHERE topic_id="571972"