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select @@global.performance_schema_setup_actors_size;
@@global.performance_schema_setup_actors_size
123
select @@session.performance_schema_setup_actors_size;
ERROR HY000: Variable 'performance_schema_setup_actors_size' is a GLOBAL variable
show global variables like 'performance_schema_setup_actors_size';
Variable_name Value
performance_schema_setup_actors_size 123
show session variables like 'performance_schema_setup_actors_size';
Variable_name Value
performance_schema_setup_actors_size 123
select * from information_schema.global_variables
where variable_name='performance_schema_setup_actors_size';
VARIABLE_NAME VARIABLE_VALUE
PERFORMANCE_SCHEMA_SETUP_ACTORS_SIZE 123
select * from information_schema.session_variables
where variable_name='performance_schema_setup_actors_size';
VARIABLE_NAME VARIABLE_VALUE
PERFORMANCE_SCHEMA_SETUP_ACTORS_SIZE 123
set global performance_schema_setup_actors_size=1;
ERROR HY000: Variable 'performance_schema_setup_actors_size' is a read only variable
set session performance_schema_setup_actors_size=1;
ERROR HY000: Variable 'performance_schema_setup_actors_size' is a read only variable
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