The grid itself is adaptive, meaning that if there is not enough horizontal space considering the width and the gutter of the items, the columncount will decrease and the grid will re-order.
网格本身是自适应的,意思是如果没有足够的水平空间考虑宽度和排水沟的物品,列数将减少和网格将排序。
2
Note that if several counting functions or tests operate on the same column, then the sort and count operations only need to be done once.
注意,如果多个计数函数或测试在同一列上运行,那么排序与计数操作仅需做一次。
3
Altering a column must not make the total byte count of all columns exceed the maximum record size (SQLSTATE 54010).