MINI MINI MANI MO

#
# only global
#
select @@global.ft_min_word_len;
--error ER_INCORRECT_GLOBAL_LOCAL_VAR
select @@session.ft_min_word_len;
show global variables like 'ft_min_word_len';
show session variables like 'ft_min_word_len';
--disable_warnings
select * from information_schema.global_variables where variable_name='ft_min_word_len';
select * from information_schema.session_variables where variable_name='ft_min_word_len';
--enable_warnings

#
# show that it's read-only
#
--error ER_INCORRECT_GLOBAL_LOCAL_VAR
set global ft_min_word_len=1;
--error ER_INCORRECT_GLOBAL_LOCAL_VAR
set session ft_min_word_len=1;