set @@ob_query_timeout=3599999999999999963;
Warnings:
Warning	1265	Timeout value truncated to 102 years
select @@ob_query_timeout;
@@ob_query_timeout
3216672000000000
set @@ob_query_timeout=3216672000000000;
select @@ob_query_timeout;
@@ob_query_timeout
3216672000000000
set @@ob_query_timeout=3216672000000001;
Warnings:
Warning	1265	Timeout value truncated to 102 years
select @@ob_query_timeout;
@@ob_query_timeout
3216672000000000
set @@ob_query_timeout=3216671999999999;
select @@ob_query_timeout;
@@ob_query_timeout
3216671999999999
drop table if exists t1;
create table t1(a int primary key ,b int);
desc t1;
Field	Type	Null	Key	Default	Extra
a	int(11)	NO	PRI	NULL	
b	int(11)	YES		NULL	
select * from t1;
a	b
drop table t1;