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# ulong session
SET @start_global_value = @@global.deadlock_timeout_short;
#
# exists as global only
#
select @@global.deadlock_timeout_short;
select @@session.deadlock_timeout_short;
show global variables like 'deadlock_timeout_short';
show session variables like 'deadlock_timeout_short';
select * from information_schema.global_variables where variable_name='deadlock_timeout_short';
select * from information_schema.session_variables where variable_name='deadlock_timeout_short';
#
# show that it's writable
#
set global deadlock_timeout_short=10;
select @@global.deadlock_timeout_short;
set session deadlock_timeout_short=10;
select @@session.deadlock_timeout_short;
#
# incorrect types
#
--error ER_WRONG_TYPE_FOR_VAR
set global deadlock_timeout_short=1.1;
--error ER_WRONG_TYPE_FOR_VAR
set session deadlock_timeout_short=1e1;
--error ER_WRONG_TYPE_FOR_VAR
set global deadlock_timeout_short="foo";
#
# min/max values, block size
#
set global deadlock_timeout_short=0;
select @@global.deadlock_timeout_short;
set session deadlock_timeout_short=cast(-1 as unsigned int);
select @@session.deadlock_timeout_short;
SET @@global.deadlock_timeout_short = @start_global_value;
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