MySQL Cases-MySQL 8.0.26 bug ERROR 1064 (42000) at line1: You have an error

Today, my colleagues found me , Said it was executing mysql During master-slave setup , Main library mysqldump Backup , Then an error is reported when recovering from the database , The error message is as follows

mysql: [Waring] Using a [password on the command line interface can be insecure.
ERROR 1064 (42000) at line1: You have an error in your SQL syntax; check the manual that corresponds 
to your MySQL server version for the right syntax to use near 'WARNING: --master-data is deprecated and 
will be removed in a future version. Us' at line 1 

There are also problems with using your own script backups

see mysqldump The contents are as follows ：

The first line is not commented out , The following pictures are the ones I commented out later . You may want to use the following version --master-data To be removed , But the code doesn't handle this part well , Actually wrote mysqldump In backup file

use 8.0.25 Test version , There is no such problem

The solution to this problem is relatively simple , ultimately

author ： Yao Chong Oracle OCM、MySQL OCP、Oceanbase OBCA、PingCAP PCTA authentication , Good at based on Oracle、MySQL Performance Turning And a variety of relational NoSQL database .