alter table opl_zDatabase add circData tinyint(1) unsigned not null default 0;
insert into opl_preference values 
    ('unionCircUpdate','0','0|1','1:enable auto update circulation data to union; 0:disabled ',0,8,5), 
    ('unionCircUpdateDate','0000-00-00 00:00:00','datetime','date and time in international format (YYYY-mm-dd HH:MM:SS)',0,8,6);
