In accordance with the optimizer, the quantity of tuples will be retrieved from partsupp per scan? How many from provider for each scan? Do you consider these figures a great estimation? Why or Why don't you? “在我的生活中，我感觉帮助别人一定会是我职业生涯里不可分割的一部分。我的父母给我培养的理念是，我们要不断地努力接触我们周围的人的生活。在我二年级的时候，我得到了学业中第一个奖项：... http://zion5a7un.onesmablog.com/personal-statement-Can-Be-Fun-For-Anyone-48614657