With the column attribute SYSTEM DEFAULT COMPRESSION, additional space can be saved if columns contain the system default very often.

当使用列属性 SYSTEM DEFAULT COMPRESSION 时，如果列中包含很多的系统默认值，则可以节省更多的空间。

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To filter out the default all, use 'grep -v' to list all users with sugroups that do not have the default all attribute set. Replace all with your default sugroup on your system, located in.

为了筛选出默认的ALL，可以使用' grep - v '列出sugroup s属性设置为默认值all的所有用户。

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You can use the grep utility to search the system user attribute defaults in the file. Depending on the placement of comments in the file, one of the following will extract just the default stanza

可以使用 grep 工具在文件中搜索系统用户属性默认值。

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