let type=timestamp;
--source include/type_hrtime.inc

set time_zone='+03:00';
set timestamp=unix_timestamp('2011-01-01 01:01:01') + 0.123456;

create table t1 (a timestamp(5) DEFAULT CURRENT_TIMESTAMP);
#
# CREATE ... DEFAULT NOW(X)
#

insert t1 values ();
select * from t1;
drop table t1;

#
# MDEV-438 Microseconds: Precision is ignored in CURRENT_TIMESTAMP(N) when it is given as a default column value 
#
create or replace table t1 (a timestamp(5) default current_timestamp);
show create table t1;
create or replace table t1 (a timestamp(5) default current_timestamp());
show create table t1;
create or replace table t1 (a timestamp(5) default current_timestamp(2));
show create table t1;
insert t1 () values ();
select * from t1;
create or replace table t1 (a timestamp(5) default current_timestamp(5));
show create table t1;
create or replace table t1 (a timestamp(5) default current_timestamp(6));
show create table t1;
create or replace table t1 (a timestamp(5) on update current_timestamp);
show create table t1;
create or replace table t1 (a timestamp(5) on update current_timestamp());
show create table t1;
--error ER_INVALID_ON_UPDATE
create or replace table t1 (a timestamp(5) on update current_timestamp(3));
create or replace table t1 (a timestamp(5) on update current_timestamp(5));
show create table t1;
create or replace table t1 (a timestamp(5) on update current_timestamp(6));
show create table t1;
drop table t1;