全局索引又可分为 全局分区索引 （ global partitioned index ）和全局非分区索引（global non-partitioned index）,示例： 创建 全局分区索引 ：
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因为只在新附加分区上构建这一本地索引，并需要非常有限的日志，所以与全局索引相比，SET INTEGRITY甚至明显变快了。
Since this local index build happens only on the newly attached partition and requires very limited logging, SET INTEGRITY is still significantly faster compared to global indexes.
以下例子阐明了如何在不含全局索引的表上应用分区级别reorg ？
The following examples illustrate partition-level REORG on a table that has no global indexes.
A：索引查找利用全局索引扫描，来确定对分区的引用是否存在。
A: With global index scans, the index look-up determines whether a reference to a partition exists.
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