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.

由于每个索引(片段)都有自己的udi计数器，因此将根据索引(片段)的修改程度判断是否跳过或是重建索引统计。

youdao

This means that DB2 chooses either the rebuild or incremental index maintain approach, whichever is the best fit.

这意味着，DB 2从重新构建和增量索引维护两种方法中选择最合适的方法。

youdao

Perform index reorganizations online and rebuild compression dictionaries when table reorganization takes place.

在线执行索引重组，并在发生表重组时重构压缩字典。

youdao

Does he shrink, rebuild, re-index and run other maintenance utilities on your databases like you should be doing?

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