不考虑: dismissirrespective ofleave out of accountprescind fromrule outset asidetake no account ofwithout considerationwithout regard forwithout regard to
An aggregate function invariant to null values does not consider null values in the group while it is evaluating the aggregate value 对空值固定不变的聚合函数在求聚合值时不考虑组中的空值。
