当以下查询在 MySQL DB 上运行时
SHOW ENGINE INNODB STATUS;
输出包含以下形式的 TRANSACTIONS 部分
---TRANSACTION 352221071982, ACTIVE 783 sec unlock_row/inserting
mysql tables in use 3, locked 1
102556 lock struct(s), heap size 376, 20000 row lock(s)
MySQL thread id 61619, OS thread handle 0x2b11e3207700, query id 4861037 user_ip user Creating sort index
/* ApplicationName= */ UPDATE Table ...
Trx read view will not see trx with id >= 352221071983, sees < 352221057548
---TRANSACTION 352221063355, ACTIVE 1489 sec inserting
mysql tables in use 2, …