type_timestamp.test

视频监控网络部分的协议ddns,的模块的实现代码,请大家大胆指正.

#
# Test timestamp
#

--disable_warnings
drop table if exists t1,t2;
--enable_warnings

# Set timezone to GMT-3, to make it possible to use "interval 3 hour"
set time_zone="+03:00";

CREATE TABLE t1 (a int, t timestamp);
CREATE TABLE t2 (a int, t datetime);
SET TIMESTAMP=1234;
insert into t1 values(1,NULL);
insert into t1 values(2,"2002-03-03");
SET TIMESTAMP=1235;
insert into t1 values(3,NULL);
SET TIMESTAMP=1236;
insert into t1 (a) values(4);
insert into t2 values(5,"2002-03-04"),(6,NULL),(7,"2002-03-05"),(8,"00-00-00");
SET TIMESTAMP=1237;
insert into t1 select * from t2;
SET TIMESTAMP=1238;
insert into t1 (a) select a+1 from t2 where a=8;
select * from t1;
drop table t1,t2;

SET TIMESTAMP=1234;
CREATE TABLE t1 (value TEXT NOT NULL, id VARCHAR(32) NOT NULL, stamp timestamp, PRIMARY KEY (id));
INSERT INTO t1 VALUES ("my value", "myKey","1999-04-02 00:00:00");
SELECT stamp FROM t1 WHERE id="myKey";
UPDATE t1 SET value="my value" WHERE id="myKey";
SELECT stamp FROM t1 WHERE id="myKey";
UPDATE t1 SET id="myKey" WHERE value="my value";
SELECT stamp FROM t1 WHERE id="myKey";
drop table t1;

create table t1 (a timestamp);
insert into t1 values (now());
select date_format(a,"%Y %y"),year(a),year(now()) from t1;
drop table t1;

create table t1 (ix timestamp);
insert into t1 values (19991101000000),(19990102030405),(19990630232922),(19990601000000),(19990930232922),(19990531232922),(19990501000000),(19991101000000),(19990501000000);
select ix+0 from t1;
delete from t1;
insert into t1 values ("19991101000000"),("19990102030405"),("19990630232922"),("19990601000000");
select ix+0 from t1;
drop table t1;

CREATE TABLE t1 (date date, date_time datetime, time_stamp timestamp);
INSERT INTO t1 VALUES ("1998-12-31","1998-12-31 23:59:59",19981231235959);
INSERT INTO t1 VALUES ("1999-01-01","1999-01-01 00:00:00",19990101000000);
INSERT INTO t1 VALUES ("1999-09-09","1999-09-09 23:59:59",19990909235959);
INSERT INTO t1 VALUES ("2000-01-01","2000-01-01 00:00:00",20000101000000);
INSERT INTO t1 VALUES ("2000-02-28","2000-02-28 00:00:00",20000228000000);
INSERT INTO t1 VALUES ("2000-02-29","2000-02-29 00:00:00",20000229000000);
INSERT INTO t1 VALUES ("2000-03-01","2000-03-01 00:00:00",20000301000000);
INSERT INTO t1 VALUES ("2000-12-31","2000-12-31 23:59:59",20001231235959);
INSERT INTO t1 VALUES ("2001-01-01","2001-01-01 00:00:00",20010101000000);
INSERT INTO t1 VALUES ("2004-12-31","2004-12-31 23:59:59",20041231235959);
INSERT INTO t1 VALUES ("2005-01-01","2005-01-01 00:00:00",20050101000000);
INSERT INTO t1 VALUES ("2030-01-01","2030-01-01 00:00:00",20300101000000);
# The following will get you an different answer on 64 bit machines
#INSERT INTO t1 VALUES ("2050-01-01","2050-01-01 00:00:00",20500101000000);
SELECT * FROM t1;
drop table t1;

create table t1 (t2 timestamp(2), t4 timestamp(4), t6 timestamp(6),
                 t8 timestamp(8), t10 timestamp(10), t12 timestamp(12),
                 t14 timestamp(14));
insert t1 values (0,0,0,0,0,0,0),
("1997-12-31 23:47:59", "1997-12-31 23:47:59", "1997-12-31 23:47:59",
"1997-12-31 23:47:59", "1997-12-31 23:47:59", "1997-12-31 23:47:59",
"1997-12-31 23:47:59");
select * from t1;
select * from t1;
drop table t1;

#
# Let us check if we properly treat wrong datetimes and produce proper warnings
# (for both strings and numbers)
#
create table t1 (ix timestamp);
insert into t1 values (0),(20030101010160),(20030101016001),(20030101240101),(20030132010101),(20031301010101),(20031200000000),(20030000000000);
select ix+0 from t1;
delete from t1;
insert into t1 values ("00000000000000"),("20030101010160"),("20030101016001"),("20030101240101"),("20030132010101"),("20031301010101"),("20031200000000"),("20030000000000");
select ix+0 from t1;
delete from t1;
insert into t1 values ("0000-00-00 00:00:00 some trailer"),("2003-01-01 00:00:00 some trailer");
select ix+0 from t1;
drop table t1;

#
# Test for TIMESTAMP column with default now() and on update now() clauses
#

# These statements should fail.
--error 1293
create table t1 (t1 timestamp, t2 timestamp default now());
--error 1293
create table t1 (t1 timestamp, t2 timestamp on update now());
--error 1293
create table t1 (t1 timestamp, t2 timestamp default now() on update now());
--error 1293
create table t1 (t1 timestamp default now(), t2 timestamp on update now());
--error 1293
create table t1 (t1 timestamp on update now(), t2 timestamp default now() on update now());

# Let us test TIMESTAMP auto-update behaviour
# Also we will test behaviour of TIMESTAMP field in SHOW CREATE TABLE and
# behaviour of DEFAULT literal for such fields
create table t1 (t1 timestamp default '2003-01-01 00:00:00', t2 datetime, t3 timestamp);
SET TIMESTAMP=1000000000;
insert into t1 values ();
SET TIMESTAMP=1000000001;
update t1 set t2=now();
SET TIMESTAMP=1000000002;
insert into t1 (t1,t3) values (default, default);
select * from t1;
show create table t1;
show columns from t1;
drop table t1;

create table t1 (t1 timestamp default now(), t2 datetime, t3 timestamp);
SET TIMESTAMP=1000000002;
insert into t1 values ();
SET TIMESTAMP=1000000003;
update t1 set t2=now();
SET TIMESTAMP=1000000003;
insert into t1 (t1,t3) values (default, default);
select * from t1;
show create table t1;
show columns from t1;
drop table t1;

create table t1 (t1 timestamp default '2003-01-01 00:00:00' on update now(), t2 datetime);
SET TIMESTAMP=1000000004;
insert into t1 values ();
select * from t1;
SET TIMESTAMP=1000000005;
update t1 set t2=now();
SET TIMESTAMP=1000000005;
insert into t1 (t1) values (default);
select * from t1;
show create table t1;
show columns from t1;
drop table t1;

create table t1 (t1 timestamp default now() on update now(), t2 datetime);
SET TIMESTAMP=1000000006;
insert into t1 values ();
select * from t1;
SET TIMESTAMP=1000000007;
update t1 set t2=now();
SET TIMESTAMP=1000000007;
insert into t1 (t1) values (default);
select * from t1;
show create table t1;
show columns from t1;
drop table t1;

create table t1 (t1 timestamp, t2 datetime, t3 timestamp);
SET TIMESTAMP=1000000007;
insert into t1 values ();
select * from t1;
SET TIMESTAMP=1000000008;
update t1 set t2=now();
SET TIMESTAMP=1000000008;
insert into t1 (t1,t3) values (default, default);
select * from t1;
show create table t1;
show columns from t1;
drop table t1;

# Let us test if CURRENT_TIMESTAMP also works well as default value
# (Of course NOW and CURRENT_TIMESTAMP are same for parser but still just
# for demonstartion.)
create table t1 (t1 timestamp default current_timestamp on update current_timestamp, t2 datetime);
SET TIMESTAMP=1000000009;
insert into t1 values ();
select * from t1;
SET TIMESTAMP=1000000010;
update t1 set t2=now();
SET TIMESTAMP=1000000011;
insert into t1 (t1) values (default);
select * from t1;
show create table t1;
show columns from t1;
delete from t1;

# 
# Let us test some cases when auto-set should be disabled or influence
# on server behavior in some other way.
#

# Update statement that explicitly sets field should not auto-set it. 
insert into t1 values ('2004-04-01 00:00:00', '2004-04-01 00:00:00');
SET TIMESTAMP=1000000012;
update t1 set t1= '2004-04-02 00:00:00';
select * from t1;
# The same for multi updates
update t1 as ta, t1 as tb set tb.t1= '2004-04-03 00:00:00';
select * from t1;
drop table t1;

# Now let us test replace it should behave exactly like delete+insert
# Case where optimization is possible DEFAULT = ON UPDATE
create table t1 (pk int primary key, t1 timestamp default current_timestamp on update current_timestamp, bulk int);
insert into t1 values (1, '2004-04-01 00:00:00', 10);
SET TIMESTAMP=1000000013;
replace into t1 set pk = 1, bulk= 20; 
select * from t1;
drop table t1;
# Case in which there should not be optimisation
create table t1 (pk int primary key, t1 timestamp default '2003-01-01 00:00:00' on update current_timestamp, bulk int);
insert into t1 values (1, '2004-04-01 00:00:00', 10);
SET TIMESTAMP=1000000014;
replace into t1 set pk = 1, bulk= 20; 
select * from t1;
drop table t1;
# Other similar case
create table t1 (pk int primary key, t1 timestamp default current_timestamp, bulk int);
insert into t1 values (1, '2004-04-01 00:00:00', 10);
SET TIMESTAMP=1000000015;
replace into t1 set pk = 1, bulk= 20; 
select * from t1;
drop table t1;

# Let us test alter now
create table t1 (t1 timestamp default current_timestamp on update current_timestamp);
insert into t1 values ('2004-04-01 00:00:00');
SET TIMESTAMP=1000000016;
alter table t1 add i int default 10;
select * from t1;
drop table t1;

#
# Test for TIMESTAMP columns which are able to store NULLs
#

# Unlike for default TIMESTAMP fields we don't interpret first field
# in this table as TIMESTAMP with DEFAULT NOW() ON UPDATE NOW() properties.
create table t1 (a timestamp null, b timestamp null);
show create table t1;
insert into t1 values (NULL, NULL);
SET TIMESTAMP=1000000017;
insert into t1 values ();
select * from t1;
drop table t1;

# But explicit auto-set properties still should be OK.
create table t1 (a timestamp null default current_timestamp on update current_timestamp, b timestamp null);
show create table t1;
insert into t1 values (NULL, NULL);
SET TIMESTAMP=1000000018;
insert into t1 values ();
select * from t1;
drop table t1;

# It is also OK to specify NULL as default explicitly for such fields.
# This is also a test for bug #2464, DEFAULT keyword in INSERT statement
# should return default value for column.

create table t1 (a timestamp null default null, b timestamp null default '2003-01-01 00:00:00');
show create table t1;
insert into t1 values (NULL, NULL);
insert into t1 values (DEFAULT, DEFAULT);
select * from t1;
drop table t1;

#
# Let us test behavior of ALTER TABLE when it converts columns 
# containing NULL to TIMESTAMP columns.
#
create table t1 (a bigint, b bigint);
insert into t1 values (NULL, NULL), (20030101000000, 20030102000000);
set timestamp=1000000019;
alter table t1 modify a timestamp, modify b timestamp;
select * from t1;
drop table t1;

#
# Test for bug #4131, TIMESTAMP columns missing minutes and seconds when
# using GROUP BY in @@new=1 mode.
#
create table t1 (a char(2), t timestamp);
insert into t1 values ('a', '2004-01-01 00:00:00'), ('a', '2004-01-01 01:00:00'),
                      ('b', '2004-02-01 00:00:00');
select max(t) from t1 group by a;
drop table t1;

#
# Test for bug #7418 "TIMESTAMP not always converted to DATETIME in MAXDB
# mode". TIMESTAMP columns should be converted DATETIME columns in MAXDB
# mode regardless of whether a display width is given.
#
set sql_mode='maxdb';
create table t1 (a timestamp, b timestamp(19));
show create table t1;
# restore default mode
set sql_mode='';
drop table t1;

#
# Bug#7806 - insert on duplicate key and auto-update of timestamp
#
create table t1 (a int auto_increment primary key, b int, c timestamp);
insert into t1 (a, b, c) values (1, 0, '2001-01-01 01:01:01'),
  (2, 0, '2002-02-02 02:02:02'), (3, 0, '2003-03-03 03:03:03');
select * from t1;
update t1 set b = 2, c = c where a = 2;
select * from t1;
insert into t1 (a) values (4);
select * from t1;
update t1 set c = '2004-04-04 04:04:04' where a = 4;
select * from t1;
insert into t1 (a) values (3), (5) on duplicate key update b = 3, c = c;
select * from t1;
insert into t1 (a, c) values (4, '2004-04-04 00:00:00'),
  (6, '2006-06-06 06:06:06') on duplicate key update b = 4;
select * from t1;
drop table t1;

# End of 4.1 tests

# Restore timezone to default
set time_zone= @@global.time_zone;

CREATE TABLE t1 (
`id` int(11) NOT NULL auto_increment,
`username` varchar(80) NOT NULL default '',
`posted_on` timestamp NOT NULL default '0000-00-00 00:00:00',
PRIMARY KEY (`id`)
) ENGINE=MyISAM DEFAULT CHARSET=latin1 AUTO_INCREMENT=1;

show fields from t1;
select is_nullable from INFORMATION_SCHEMA.COLUMNS where TABLE_NAME='t1' and COLUMN_NAME='posted_on';
drop table t1;