quick-scan 中文意思是什麼
quick-scan
解釋
快速掃描-
Scheduler, to allow scheduling of a quick scan, full scan or smart update at specified times and intervals
調度定設于用,器快速掃描、全面掃描或智能更新的時間和間隔。 -
In a quick test on a table with 100, 000 rows loaded using a sequence, a normal index was used for most queries returning up to 30 rows, as was the reverse key index, however, when the number of rows went up to 1, 000, 000 the reverse key index was never used and a full table scan was used every time
在一個用一個序列載入並含100 , 000行的表上做一個快速的測試,分別用普通索引和逆序索引查詢並返回30行數據,當行數增長到1 , 000 , 000 ,將不再使用逆序索引而是每次使用全表掃描。
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