Merge pull request #32 from Icinga/mysql-8-compat

Fix compatibility with MySQL 8.0.0 to 8.0.13

Author: oxzi

internal/services/mysql/root_connection.go

@@ -52,8 +52,8 @@ func (m *rootConnection) CreateMysqlDatabase() services.MysqlDatabaseBase {
 	if err != nil {
 		panic(err)
 	}
-	// SESSION_VARIABLES_ADMIN is only needed and supported on MySQL 8+, that magic comments only executes it there.
-	_, err = m.db.Exec(fmt.Sprintf("/*!80000 GRANT SESSION_VARIABLES_ADMIN ON *.* TO %s */", username))
+	// SESSION_VARIABLES_ADMIN is only needed and supported on MySQL 8.0.14+, that magic comments only executes it there.
+	_, err = m.db.Exec(fmt.Sprintf("/*!80014 GRANT SESSION_VARIABLES_ADMIN ON *.* TO %s */", username))
 	if err != nil {
 		panic(err)
 	}