set @old_innodb_file_format_max=@@innodb_file_format_max;
select @old_innodb_file_format_max;
@old_innodb_file_format_max
Antelope
set global innodb_file_format_max = Barracuda;
select @@innodb_file_format_max;
@@innodb_file_format_max
Barracuda
set global innodb_file_format_max = DEFAULT;
select @@innodb_file_format_max;
@@innodb_file_format_max
Antelope
set global innodb_file_format_max = @old_innodb_file_format_max;
select @@innodb_file_format_max;
@@innodb_file_format_max
Antelope
set global innodb_file_format_max = cheetah;
ERROR 42000: Variable 'innodb_file_format_max' can't be set to the value of 'cheetah'
set global innodb_file_format_max = Bear;
ERROR 42000: Variable 'innodb_file_format_max' can't be set to the value of 'Bear'
set global innodb_file_format_max = on;
ERROR 42000: Variable 'innodb_file_format_max' can't be set to the value of 'ON'
set global innodb_file_format_max = off;
ERROR 42000: Variable 'innodb_file_format_max' can't be set to the value of 'off'