mysql5.6和mysql5.7分配undo回滚段的区别
1、mysql5.7中分为2类：临时表空间回滚段和普通回滚段。2、mysql5.6中没有区分。As ofMySQL 5.7.2, 32 undo logs are reserved for use by temporary tables and are hosted in the temporary table tablespace (ibtmp1). To allocat
