These statistics are stored in memory structures that represent the catalog information for declared temporary tables.

这些统计信息存储在表示声明的临时表的目录信息的内存结构中。

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Increasing the precision of distribution statistics leads to greater CPU and memory consumption, as well as increased catalog space.

提高分布统计信息的精确度将导致更大的CPU和内存消耗，并占用更多的目录空间。

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Identify problems with memory, including low buffer pool hit ratios, catalog cache hit ratios, and package cache hit ratios.

识别内存问题，包括较低的缓冲池命中率、较低的目录缓存命中率和较低的包缓存命中率。

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