postorder traversal 中文意思是什麼
postorder traversal
解釋
後序遍歷-
Nevertheless, some indices do not contain all element nodes, many paths need to still be examined in the query ; other indices produce redundant data in the preorder or postorder traversal, this makes the cost of query much more
然而有的索引不包含所有的元素結點,因而在進行查詢時許多路徑仍需要檢測;有的在向前或向後遍歷時產生了大量的冗餘數據,從而造成查詢代價較大。
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