--enable_connect_log

alter table mysql.user modify User char(80) binary not null default '';
alter table mysql.db modify User char(80) binary not null default '';
alter table mysql.tables_priv modify User char(80) binary not null default '';
alter table mysql.columns_priv modify User char(80) binary not null default '';
alter table mysql.procs_priv modify User char(80) binary not null default '';
alter table mysql.proc modify definer char(141) collate utf8_bin not null default '';
alter table mysql.event modify definer char(141) collate utf8_bin not null default '';
flush privileges;

create user 'a123456789-123456789-123456789-123456789-123456789-123456789-123456789-123456789';
connect (con1,localhost,a123456789-123456789-123456789-123456789-123456789-123456789-123456789-123456789,,);

create procedure p() begin end;
create event ev on schedule every 1 minute do select 1 end;

query_vertical show events;
query_vertical show procedure status like 'p';

disconnect con1;
connection default;	

alter table mysql.user modify User char(16) binary not null default '';
alter table mysql.db modify User char(16) binary not null default '';
alter table mysql.tables_priv modify User char(16) binary not null default '';
alter table mysql.columns_priv modify User char(16) binary not null default '';
alter table mysql.procs_priv modify User char(16) binary not null default '';
alter table mysql.proc modify definer char(77) collate utf8_bin not null default '';
alter table mysql.event modify definer char(77) collate utf8_bin not null default '';

drop event ev;
drop procedure p;
drop user 'a123456789-123456789-123456789-123456789-123456789-123456789-123456789-123456789';