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|
# set session
SET @start_global_value = @@global.log_slow_verbosity;
#
# exists as global only
#
select @@global.log_slow_verbosity;
select @@session.log_slow_verbosity;
show global variables like 'log_slow_verbosity';
show session variables like 'log_slow_verbosity';
select * from information_schema.global_variables where variable_name='log_slow_verbosity';
select * from information_schema.session_variables where variable_name='log_slow_verbosity';
#
# show that it's writable
#
set global log_slow_verbosity=1;
select @@global.log_slow_verbosity;
set session log_slow_verbosity=1;
select @@session.log_slow_verbosity;
#
# all valid values
#
set session log_slow_verbosity=1;
select @@session.log_slow_verbosity;
set session log_slow_verbosity=2;
select @@session.log_slow_verbosity;
set session log_slow_verbosity=3;
select @@session.log_slow_verbosity;
set session log_slow_verbosity=4;
select @@session.log_slow_verbosity;
set session log_slow_verbosity=5;
select @@session.log_slow_verbosity;
set session log_slow_verbosity=6;
select @@session.log_slow_verbosity;
set session log_slow_verbosity=7;
select @@session.log_slow_verbosity;
set session log_slow_verbosity='innodb';
select @@session.log_slow_verbosity;
set session log_slow_verbosity='query_plan';
select @@session.log_slow_verbosity;
set session log_slow_verbosity='innodb,query_plan';
select @@session.log_slow_verbosity;
set session log_slow_verbosity='explain';
select @@session.log_slow_verbosity;
set session log_slow_verbosity='innodb,query_plan,explain';
select @@session.log_slow_verbosity;
set session log_slow_verbosity='';
select @@session.log_slow_verbosity;
#
# incorrect types/values
#
--error ER_WRONG_TYPE_FOR_VAR
set session log_slow_verbosity=1.1;
--error ER_WRONG_TYPE_FOR_VAR
set session log_slow_verbosity=1e1;
--error ER_WRONG_VALUE_FOR_VAR
set session log_slow_verbosity="foo";
--error ER_WRONG_VALUE_FOR_VAR
set session log_slow_verbosity=8;
SET @@global.log_slow_verbosity = @start_global_value;
|
