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|
# set session
SET @start_global_value = @@global.log_slow_filter;
#
# exists as global only
#
select @@global.log_slow_filter;
select @@session.log_slow_filter;
show global variables like 'log_slow_filter';
show session variables like 'log_slow_filter';
select * from information_schema.global_variables where variable_name='log_slow_filter';
select * from information_schema.session_variables where variable_name='log_slow_filter';
#
# show that it's writable
#
set global log_slow_filter=1;
select @@global.log_slow_filter;
set session log_slow_filter=1;
select @@session.log_slow_filter;
#
# all valid values
#
set session log_slow_filter=1;
select @@session.log_slow_filter;
set session log_slow_filter=2;
select @@session.log_slow_filter;
set session log_slow_filter=5;
select @@session.log_slow_filter;
set session log_slow_filter='admin';
select @@session.log_slow_filter;
set session log_slow_filter='filesort';
select @@session.log_slow_filter;
set session log_slow_filter='filesort_on_disk';
select @@session.log_slow_filter;
set session log_slow_filter='full_join';
select @@session.log_slow_filter;
set session log_slow_filter='full_scan';
select @@session.log_slow_filter;
set session log_slow_filter='query_cache';
select @@session.log_slow_filter;
set session log_slow_filter='query_cache_miss';
select @@session.log_slow_filter;
set session log_slow_filter='tmp_table';
select @@session.log_slow_filter;
set session log_slow_filter='tmp_table_on_disk';
select @@session.log_slow_filter;
set session log_slow_filter='filesort,query_cache';
select @@session.log_slow_filter;
set session log_slow_filter='admin,filesort,filesort_on_disk,full_join,full_scan,query_cache,query_cache_miss,tmp_table,tmp_table_on_disk';
select @@session.log_slow_filter;
set session log_slow_filter='';
select @@session.log_slow_filter;
#
# incorrect types/values
#
--error ER_WRONG_TYPE_FOR_VAR
set session log_slow_filter=1.1;
--error ER_WRONG_TYPE_FOR_VAR
set session log_slow_filter=1e1;
--error ER_WRONG_VALUE_FOR_VAR
set session log_slow_filter="foo";
--error ER_WRONG_VALUE_FOR_VAR
set session log_slow_filter=1024;
SET @@global.log_slow_filter = @start_global_value;
|
