Cartesian product短语¹⁴⁴⁹⁷²⁺² 基本英英近义反义例句 笛卡尔乘积 Noun: the set of elements common to two or more sets;
the set of red hats is the intersection of the set of hats and the set of red things
近义词product产品intersection交集 A join is a Cartesian product of two row sets, with the join predicate applied as a filter to the result.一个连接是两个行集的笛卡尔乘积，谓词连接作为一个过滤结果应用。