1select @@global.ft_stopword_file;
2@@global.ft_stopword_file
3(built-in)
4select @@session.ft_stopword_file;
5ERROR HY000: Variable 'ft_stopword_file' is a GLOBAL variable
6show global variables like 'ft_stopword_file';
7Variable_name	Value
8ft_stopword_file	(built-in)
9show session variables like 'ft_stopword_file';
10Variable_name	Value
11ft_stopword_file	(built-in)
12select * from information_schema.global_variables where variable_name='ft_stopword_file';
13VARIABLE_NAME	VARIABLE_VALUE
14FT_STOPWORD_FILE	(built-in)
15select * from information_schema.session_variables where variable_name='ft_stopword_file';
16VARIABLE_NAME	VARIABLE_VALUE
17FT_STOPWORD_FILE	(built-in)
18set global ft_stopword_file=1;
19ERROR HY000: Variable 'ft_stopword_file' is a read only variable
20set session ft_stopword_file=1;
21ERROR HY000: Variable 'ft_stopword_file' is a read only variable
22