The merge order position for the menu item to be merged.
要合并的菜单项的合并顺序位置。
Also, DB2 cannot use random order index columns as part of a sort merge join.
另外,DB 2无法在排序合并合并连接中使用随机顺序的索引列。
As shown in the IXSCAN descriptor in Figure 8, the leading column of the index exploited by optimizer is PRODUCT_NUMBER, which does not provide the order required for merge scan join.
如图8的IXSCAN描述符所示,通过优化器利用的索引的领先列是PRODUCT _ NUMBER,其不为合并扫描联接提供所需的顺序。
We said each of the merge operations O was of order n. But n is different. Right?
注意这里发生了什么,我们说过每一次合并操作的复杂度都是?
I merge. And the merge is, put them in order.
合并的过程是将它们按顺序摆放。
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