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硬核万字图解 MySQL 表空间、Tables、Index、双写缓冲 ...
会话临时表空间(Session Temporary Tablespaces) 用途:存储用户显式创建的临时表(CREATE TEMPORARY TABLE)以及优化器生成的内部临时表(如排序、分组操作)。 生命周期:会话断开时自动截断并释放回池,文件扩展名为 .ibt,默认位于 #innodb_temp 目录。
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