# ulong session

SET @start_global_value = @@global.deadlock_timeout_long;

#
# exists as global only
#
select @@global.deadlock_timeout_long;
select @@session.deadlock_timeout_long;
show global variables like 'deadlock_timeout_long';
show session variables like 'deadlock_timeout_long';
select * from information_schema.global_variables where variable_name='deadlock_timeout_long';
select * from information_schema.session_variables where variable_name='deadlock_timeout_long';

#
# show that it's writable
#
set global deadlock_timeout_long=10;
select @@global.deadlock_timeout_long;
set session deadlock_timeout_long=10;
select @@session.deadlock_timeout_long;

#
# incorrect types
#
--error ER_WRONG_TYPE_FOR_VAR
set global deadlock_timeout_long=1.1;
--error ER_WRONG_TYPE_FOR_VAR
set session deadlock_timeout_long=1e1;
--error ER_WRONG_TYPE_FOR_VAR
set global deadlock_timeout_long="foo";

#
# min/max values, block size
#
set global deadlock_timeout_long=0;
select @@global.deadlock_timeout_long;
set session deadlock_timeout_long=cast(-1 as unsigned int);
select @@session.deadlock_timeout_long;

SET @@global.deadlock_timeout_long = @start_global_value;