skip index

基本解釋

For multiple index push-downs, multi-index scan is used to combine RIDs from different index scans, then skip-scan on the fact table is performed.
對于多索引下推，多索引掃描用于組合來自不同索引掃描的 RID，然后就可以執(zhí)行對事實表的跳躍式掃描了。
On the basis of the sampling inspecting practice in woollen physical index, the skip—lot sampling plan for continuous lots is designed in this paper.
根據(jù)毛織品物理指標檢驗抽樣實際，對連續(xù)批抽樣檢驗設(shè)計了跳批抽樣方案。
Since each index (fragment) has its own UDI counter, the decision to skip or rebuild index statistics is done based on how much the index (fragment) has changed.
由于每個索引（片段）都有自己的 UDI 計數(shù)器，因此將根據(jù)索引（片段）的修改程度判斷是否跳過或是重建索引統(tǒng)計。

And I can obviously do the other direction which is I can say skip to index 2 and all the remaining pieces. This lets me slice out, if you like, the front part or back part or a middle part of the tuple as I go along.
很明顯我可以從索引2開始切片,所有剩下的元素，這可以讓我2,如果你喜歡我這么說的話,取得元素的前面的或者后面的,或者中間的部分。
麻省理工公開課 - 計算機科學及編程導論課程節(jié)選