secondary index的意思
secondary index中文翻譯:
[圖情][計]輔助索引
次索引
secondary───n.副手;代理人;adj.第二的;中等的;次要的;中級的
secondary consumer───次級消費者
index───vi.做索引;vt.指出;編入索引中;n.指標;指數;索引;指針
secondary education───中等教育
secondary color───次生色;n.合成色,間色;二次色
secondary school───n.中學;中等學校
secondary products───次級產品;副產品
secondary consideration───次要考慮
secondary succession───[植]次級演替;次生演替系列
If you add a PATH secondary index, you may also improve the search performance in such queries.───如果添加PATH輔助索引,則您還可以改善此類查詢的搜索性能。
Type columns, a PATH secondary index may be able to speed up the search.───類型列指定路徑表達式,則PATH輔助索引可以提高搜索的速度。
impact of a data-partitioned secondary index (DPSI) structure on ORDER BY sort avoidance.───一個分區數據二級索引(data - partitioned secondary index, DPSI)結構對ORDER BY排序規避的影響。
secondary index in a pair of indexes used to locate a particular file record.───用來查找特定文件記錄的一對索引中的第二級索引。
We keep only a compound primary key and a secondary index for each row, and answer all queries from a single index.───我們只保留了一個組合主鍵和一個輔助索引來完成所有的查詢。
To understand how a secondary index is used, consider what occurs when a user changes the way messages are presented in a messaging folder.───若要了解如何使用輔助索引,請考慮當用戶更改郵件在郵件文件夾中的顯示方式時所發生的操作。
When a secondary index is to be created or dropped, the table will be locked in shared mode.───當非聚集索引被創建或刪除,此表被加上共享鎖。
If a tagged column is represented in a secondary index, each distinct occurrence of the column is referenced by the index.───如果在輔助索引中表示一個標記列,則該列每次不同的出現均會通過索引來引用。
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