alter table jzmkt_register modify VPRONAME varchar(2048);
select md_class.id from md_class where md_class.defaulttablename='jzmkt_register'
UPDATE md_property set attrlength=2048 WHERE classid in ('3f7681d4-99c2-4012-aaa3-5c46c4096267') AND name ='vproname'
UPDATE md_column set columnlength=2048 WHERE tableid='jzmkt_register' and name = 'vproname'
md_component 可以查看元数据版本
