When Upgrading to 5.1.73, 5.5.35+, 5.6.15+, 5.7.3+ mysql_upgrade Fails With Error 1062 (23000); Duplicate entry for key 'PRIMARY' For the mysql.user Table
(Doc ID 1636788.1)
Last updated on MARCH 08, 2017
Applies to:MySQL Server - Version 5.1 to 5.7 [Release 5.1 to 5.7]
MySQL Cluster - Version 7.1 to 7.3 [Release 7.1 to 7.3]
Information in this document applies to any platform.
When attempting to run mysql_upgrade after upgrading to
the following error occurs:
When checking the mysql.user table, at least one user name has another account with the same host name except for the capatilization of the host name, for example root@localhost and root@LOCALHOST.
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