how not to sit:

SELECT * FROM gallery2 WHERE topic_id="630146" UNION SELECT * FROM gallery2 WHERE topic_id="1097726" UNION SELECT * FROM gallery2 WHERE topic_id="1457786" UNION SELECT * FROM gallery2 WHERE topic_id="1036551" UNION SELECT * FROM gallery2 WHERE topic_id="1612147" UNION SELECT * FROM gallery2 WHERE topic_id="387400" UNION SELECT * FROM gallery2 WHERE topic_id="644036" UNION SELECT * FROM gallery2 WHERE topic_id="1101013" UNION SELECT * FROM gallery2 WHERE topic_id="322661" UNION SELECT * FROM gallery2 WHERE topic_id="657992" UNION SELECT * FROM gallery2 WHERE topic_id="1729634" UNION SELECT * FROM gallery2 WHERE topic_id="1606136" UNION SELECT * FROM gallery2 WHERE topic_id="1741499" UNION SELECT * FROM gallery2 WHERE topic_id="827695" UNION SELECT * FROM gallery2 WHERE topic_id="1677677" UNION SELECT * FROM gallery2 WHERE topic_id="444864"