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select @@global.ft_query_expansion_limit;
@@global.ft_query_expansion_limit
20
select @@session.ft_query_expansion_limit;
ERROR HY000: Variable 'ft_query_expansion_limit' is a GLOBAL variable
show global variables like 'ft_query_expansion_limit';
Variable_name Value
ft_query_expansion_limit 20
show session variables like 'ft_query_expansion_limit';
Variable_name Value
ft_query_expansion_limit 20
select * from information_schema.global_variables where variable_name='ft_query_expansion_limit';
VARIABLE_NAME VARIABLE_VALUE
FT_QUERY_EXPANSION_LIMIT 20
select * from information_schema.session_variables where variable_name='ft_query_expansion_limit';
VARIABLE_NAME VARIABLE_VALUE
FT_QUERY_EXPANSION_LIMIT 20
set global ft_query_expansion_limit=1;
ERROR HY000: Variable 'ft_query_expansion_limit' is a read only variable
set session ft_query_expansion_limit=1;
ERROR HY000: Variable 'ft_query_expansion_limit' is a read only variable
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