Documentation Home
MySQL 8.0 Reference Manual
Related Documentation Download this Manual
PDF (US Ltr) - 42.2Mb
PDF (A4) - 42.2Mb
Man Pages (TGZ) - 270.2Kb
Man Pages (Zip) - 381.3Kb
Info (Gzip) - 4.2Mb
Info (Zip) - 4.2Mb
Excerpts from this Manual

MySQL 8.0 Reference Manual  /  ...  /  Replication and User Name Length

17.5.1.38 Replication and User Name Length

The maximum length for user names in MySQL 8.0 is 32 characters. Replication of user names longer than 16 characters fails when the replica runs a version of MySQL previous to 5.7, because those versions support only shorter user names. This occurs only when replicating from a newer source to an older replica, which is not a recommended configuration.