自定义更新sql：

with t1 as (select acolumn,bid from a)
update b set b.bcolumn = (select acolumn from t1 where a.column = b.bcolumn) where b.id in (select bid from t1)

使用dao.execute(sql)执行如上sql报异常，查询没有传回任何结果，并且如上sql也没有正常执行
救救孩子吧