红帽全球峰会22.6.3. engine-vacuum 命令的语法
engine-vacuum 命令的基本语法为：
# engine-vacuum# engine-vacuum option
运行 engine-vacuum 命令，不带选项来执行标准撤离。
有几个参数可以进一步优化 engine-vacuum 命令。
常规选项
-h--help-
介绍如何使用
engine-vacuum命令的信息。 -a- 运行标准撤离，分析数据库并更新优化器统计信息。
-A- 分析数据库并更新优化器统计信息，而无需撤离。
-f- 运行完全撤离。
-v- 以详细模式运行，提供更多控制台输出。
-T table_nameVacuum 特定表或表。
# engine-vacuum -f -v -t vm_dynamic -t vds_dynamic
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