Without correct column distribution statistics, DB2 may not have enough information to make the best choice when choosing an access path to the data-especially if data is heavily skewed.

在选择数据的访问路径时，如果没有正确的列分布统计数据，DB 2可能没有足够的信息来做出最佳的选择，尤其是如果数据出现严重误差。

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Without column data-value distribution information in the catalog, DB2 will assume an even distribution of values, which may lead the optimizer to a sub-optimal access path.

如果编目中没有列数据值分布信息，DB 2就会假设值是均匀分布的，这可能导致优化器选择非最优的访问路径。

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Commonly used Linux executables such as mkdir typically use a common path that your Linux distribution sets.

常用的Linux可执行文件，如mkdir，通常使用Linux分布设置的通用路径。

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