MySQL查询过程中出现lost connection to mysql server during query 的解决办法

window7 64位系统，MySQL5.7

问题：在使用shell进行数据表更新操作的过程，输入以下查询语句：

1 UPDATE bank_detail_train_cp SET Time=FROM_UNIXTIME(CAST(`TimeStamp` AS UNSIGNED)-4500000000,'%Y-%m-%d') WHERE `TimeStamp`!=0;

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