mariadb/mysql-test/r/func_time.result

drop table if exists t1,t2,t3;
set time_zone="+03:00";
select from_days(to_days("960101")),to_days(960201)-to_days("19960101"),to_days(date_add(curdate(), interval 1 day))-to_days(curdate()),weekday("1997-11-29");
from_days(to_days("960101"))	to_days(960201)-to_days("19960101")	to_days(date_add(curdate(), interval 1 day))-to_days(curdate())	weekday("1997-11-29")
1996-01-01	31	1	5
select period_add("9602",-12),period_diff(199505,"9404") ;
period_add("9602",-12)	period_diff(199505,"9404")
199502	13
select now()-now(),weekday(curdate())-weekday(now()),unix_timestamp()-unix_timestamp(now());
now()-now()	weekday(curdate())-weekday(now())	unix_timestamp()-unix_timestamp(now())
0	0	0
select from_unixtime(unix_timestamp("1994-03-02 10:11:12")),from_unixtime(unix_timestamp("1994-03-02 10:11:12"),"%Y-%m-%d %h:%i:%s"),from_unixtime(unix_timestamp("1994-03-02 10:11:12"))+0;
from_unixtime(unix_timestamp("1994-03-02 10:11:12"))	from_unixtime(unix_timestamp("1994-03-02 10:11:12"),"%Y-%m-%d %h:%i:%s")	from_unixtime(unix_timestamp("1994-03-02 10:11:12"))+0
1994-03-02 10:11:12	1994-03-02 10:11:12	19940302101112
select sec_to_time(9001),sec_to_time(9001)+0,time_to_sec("15:12:22"),
sec_to_time(time_to_sec("0:30:47")/6.21);
sec_to_time(9001)	sec_to_time(9001)+0	time_to_sec("15:12:22")	sec_to_time(time_to_sec("0:30:47")/6.21)
02:30:01	23001	54742	00:04:57.4235
select sec_to_time(9001.1), time_to_sec('15:12:22.123456'), time_to_sec(15.5566778899);
sec_to_time(9001.1)	time_to_sec('15:12:22.123456')	time_to_sec(15.5566778899)
02:30:01.1	54742.123456	15.556677
select sec_to_time(time_to_sec('-838:59:59'));
sec_to_time(time_to_sec('-838:59:59'))
-838:59:59
select sec_to_time('9001.1'), sec_to_time('1234567890123.123');
sec_to_time('9001.1')	sec_to_time('1234567890123.123')
02:30:01.100000	838:59:59.999999
Warnings:
Warning	1292	Truncated incorrect time value: '1234567890123.123'
select sec_to_time(-9001.1), sec_to_time(-9001.1) / 1,
sec_to_time(-9001.1) / 1e0, sec_to_time(-9001) div 1;
sec_to_time(-9001.1)	sec_to_time(-9001.1) / 1	sec_to_time(-9001.1) / 1e0	sec_to_time(-9001) div 1
-02:30:01.1	-23001.10000	-23001.1	-23001
select sec_to_time(90011e-1), sec_to_time(1234567890123e30);
sec_to_time(90011e-1)	sec_to_time(1234567890123e30)
02:30:01.100000	838:59:59.999999
Warnings:
Warning	1292	Truncated incorrect time value: '1.234567890123e42'
select sec_to_time(1234567890123), sec_to_time('99999999999999999999999999999');
sec_to_time(1234567890123)	sec_to_time('99999999999999999999999999999')
838:59:59	838:59:59.999999
Warnings:
Warning	1292	Truncated incorrect time value: '1234567890123'
Warning	1292	Truncated incorrect time value: '99999999999999999999999999999'
select now()-curdate()*1000000-curtime();
now()-curdate()*1000000-curtime()
0
select strcmp(current_timestamp(),concat(current_date()," ",current_time()));
strcmp(current_timestamp(),concat(current_date()," ",current_time()))
0
select strcmp(localtime(),concat(current_date()," ",current_time()));
strcmp(localtime(),concat(current_date()," ",current_time()))
0
select strcmp(localtimestamp(),concat(current_date()," ",current_time()));
strcmp(localtimestamp(),concat(current_date()," ",current_time()))
0
select date_format("1997-01-02 03:04:05", "%M %W %D %Y %y %m %d %h %i %s %w");
date_format("1997-01-02 03:04:05", "%M %W %D %Y %y %m %d %h %i %s %w")
January Thursday 2nd 1997 97 01 02 03 04 05 4
select date_format("1997-01-02", concat("%M %W %D ","%Y %y %m %d %h %i %s %w"));
date_format("1997-01-02", concat("%M %W %D ","%Y %y %m %d %h %i %s %w"))
January Thursday 2nd 1997 97 01 02 12 00 00 4
select dayofmonth("1997-01-02"),dayofmonth(19970323);
dayofmonth("1997-01-02")	dayofmonth(19970323)
2	23
select month("1997-01-02"),year("98-02-03"),dayofyear("1997-12-31");
month("1997-01-02")	year("98-02-03")	dayofyear("1997-12-31")
1	1998	365
select month("2001-02-00"),year("2001-00-00");
month("2001-02-00")	year("2001-00-00")
2	2001
select DAYOFYEAR("1997-03-03"), WEEK("1998-03-03"), QUARTER(980303);
DAYOFYEAR("1997-03-03")	WEEK("1998-03-03")	QUARTER(980303)
62	9	1
select HOUR("1997-03-03 23:03:22"), MINUTE("23:03:22"), SECOND(230322);
HOUR("1997-03-03 23:03:22")	MINUTE("23:03:22")	SECOND(230322)
23	3	22
select TIME(230322), TIME(230322.33), TIME("230322.33");
TIME(230322)	TIME(230322.33)	TIME("230322.33")
23:03:22	23:03:22.33	23:03:22.33
select week(19980101),week(19970101),week(19980101,1),week(19970101,1);
week(19980101)	week(19970101)	week(19980101,1)	week(19970101,1)
0	0	1	1
select week(19981231),week(19971231),week(19981231,1),week(19971231,1);
week(19981231)	week(19971231)	week(19981231,1)	week(19971231,1)
52	52	53	53
select week(19950101),week(19950101,1);
week(19950101)	week(19950101,1)
1	0
select yearweek('1981-12-31',1),yearweek('1982-01-01',1),yearweek('1982-12-31',1),yearweek('1983-01-01',1);
yearweek('1981-12-31',1)	yearweek('1982-01-01',1)	yearweek('1982-12-31',1)	yearweek('1983-01-01',1)
198153	198153	198252	198252
select yearweek('1987-01-01',1),yearweek('1987-01-01');
yearweek('1987-01-01',1)	yearweek('1987-01-01')
198701	198652
select week("2000-01-01",0) as '2000', week("2001-01-01",0) as '2001', week("2002-01-01",0) as '2002',week("2003-01-01",0) as '2003', week("2004-01-01",0) as '2004', week("2005-01-01",0) as '2005', week("2006-01-01",0) as '2006';
2000	2001	2002	2003	2004	2005	2006
0	0	0	0	0	0	1
select week("2000-01-06",0) as '2000', week("2001-01-06",0) as '2001', week("2002-01-06",0) as '2002',week("2003-01-06",0) as '2003', week("2004-01-06",0) as '2004', week("2005-01-06",0) as '2005', week("2006-01-06",0) as '2006';
2000	2001	2002	2003	2004	2005	2006
1	0	1	1	1	1	1
select week("2000-01-01",1) as '2000', week("2001-01-01",1) as '2001', week("2002-01-01",1) as '2002',week("2003-01-01",1) as '2003', week("2004-01-01",1) as '2004', week("2005-01-01",1) as '2005', week("2006-01-01",1) as '2006';
2000	2001	2002	2003	2004	2005	2006
0	1	1	1	1	0	0
select week("2000-01-06",1) as '2000', week("2001-01-06",1) as '2001', week("2002-01-06",1) as '2002',week("2003-01-06",1) as '2003', week("2004-01-06",1) as '2004', week("2005-01-06",1) as '2005', week("2006-01-06",1) as '2006';
2000	2001	2002	2003	2004	2005	2006
1	1	1	2	2	1	1
select yearweek("2000-01-01",0) as '2000', yearweek("2001-01-01",0) as '2001', yearweek("2002-01-01",0) as '2002',yearweek("2003-01-01",0) as '2003', yearweek("2004-01-01",0) as '2004', yearweek("2005-01-01",0) as '2005', yearweek("2006-01-01",0) as '2006';
2000	2001	2002	2003	2004	2005	2006
199952	200053	200152	200252	200352	200452	200601
select yearweek("2000-01-06",0) as '2000', yearweek("2001-01-06",0) as '2001', yearweek("2002-01-06",0) as '2002',yearweek("2003-01-06",0) as '2003', yearweek("2004-01-06",0) as '2004', yearweek("2005-01-06",0) as '2005', yearweek("2006-01-06",0) as '2006';
2000	2001	2002	2003	2004	2005	2006
200001	200053	200201	200301	200401	200501	200601
select yearweek("2000-01-01",1) as '2000', yearweek("2001-01-01",1) as '2001', yearweek("2002-01-01",1) as '2002',yearweek("2003-01-01",1) as '2003', yearweek("2004-01-01",1) as '2004', yearweek("2005-01-01",1) as '2005', yearweek("2006-01-01",1) as '2006';
2000	2001	2002	2003	2004	2005	2006
199952	200101	200201	200301	200401	200453	200552
select yearweek("2000-01-06",1) as '2000', yearweek("2001-01-06",1) as '2001', yearweek("2002-01-06",1) as '2002',yearweek("2003-01-06",1) as '2003', yearweek("2004-01-06",1) as '2004', yearweek("2005-01-06",1) as '2005', yearweek("2006-01-06",1) as '2006';
2000	2001	2002	2003	2004	2005	2006
200001	200101	200201	200302	200402	200501	200601
select week(19981231,2), week(19981231,3), week(20000101,2), week(20000101,3);
week(19981231,2)	week(19981231,3)	week(20000101,2)	week(20000101,3)
52	53	52	52
select week(20001231,2),week(20001231,3);
week(20001231,2)	week(20001231,3)
53	52
select week(19981231,0) as '0', week(19981231,1) as '1', week(19981231,2) as '2', week(19981231,3) as '3', week(19981231,4) as '4', week(19981231,5) as '5', week(19981231,6) as '6', week(19981231,7) as '7';
0	1	2	3	4	5	6	7
52	53	52	53	52	52	52	52
select week(20000101,0) as '0', week(20000101,1) as '1', week(20000101,2) as '2', week(20000101,3) as '3', week(20000101,4) as '4', week(20000101,5) as '5', week(20000101,6) as '6', week(20000101,7) as '7';
0	1	2	3	4	5	6	7
0	0	52	52	0	0	52	52
select week(20000106,0) as '0', week(20000106,1) as '1', week(20000106,2) as '2', week(20000106,3) as '3', week(20000106,4) as '4', week(20000106,5) as '5', week(20000106,6) as '6', week(20000106,7) as '7';
0	1	2	3	4	5	6	7
1	1	1	1	1	1	1	1
select week(20001231,0) as '0', week(20001231,1) as '1', week(20001231,2) as '2', week(20001231,3) as '3', week(20001231,4) as '4', week(20001231,5) as '5', week(20001231,6) as '6', week(20001231,7) as '7';
0	1	2	3	4	5	6	7
53	52	53	52	53	52	1	52
select week(20010101,0) as '0', week(20010101,1) as '1', week(20010101,2) as '2', week(20010101,3) as '3', week(20010101,4) as '4', week(20010101,5) as '5', week(20010101,6) as '6', week(20010101,7) as '7';
0	1	2	3	4	5	6	7
0	1	53	1	1	1	1	1
select yearweek(20001231,0), yearweek(20001231,1), yearweek(20001231,2), yearweek(20001231,3), yearweek(20001231,4), yearweek(20001231,5), yearweek(20001231,6), yearweek(20001231,7);
yearweek(20001231,0)	yearweek(20001231,1)	yearweek(20001231,2)	yearweek(20001231,3)	yearweek(20001231,4)	yearweek(20001231,5)	yearweek(20001231,6)	yearweek(20001231,7)
200053	200052	200053	200052	200101	200052	200101	200052
set default_week_format = 6;
select week(20001231), week(20001231,6);
week(20001231)	week(20001231,6)
1	1
set default_week_format = 0;
set default_week_format = 2;
select week(20001231),week(20001231,2),week(20001231,0);
week(20001231)	week(20001231,2)	week(20001231,0)
53	53	53
set default_week_format = 0;
select date_format('1998-12-31','%x-%v'),date_format('1999-01-01','%x-%v');
date_format('1998-12-31','%x-%v')	date_format('1999-01-01','%x-%v')
1998-53	1998-53
select date_format('1999-12-31','%x-%v'),date_format('2000-01-01','%x-%v');
date_format('1999-12-31','%x-%v')	date_format('2000-01-01','%x-%v')
1999-52	1999-52
select dayname("1962-03-03"),dayname("1962-03-03")+0;
dayname("1962-03-03")	dayname("1962-03-03")+0
Saturday	5
select monthname("1972-03-04"),monthname("1972-03-04")+0;
monthname("1972-03-04")	monthname("1972-03-04")+0
March	0
select time_format(000000,'%H|%I|%k|%l|%i|%p|%r|%S|%T'),date_format(19980131000000,'%H|%I|%k|%l|%i|%p|%r|%S|%T');
time_format(000000,'%H|%I|%k|%l|%i|%p|%r|%S|%T')	date_format(19980131000000,'%H|%I|%k|%l|%i|%p|%r|%S|%T')
00|12|0|12|00|AM|12:00:00 AM|00|00:00:00	00|12|0|12|00|AM|12:00:00 AM|00|00:00:00
select time_format(010203,'%H|%I|%k|%l|%i|%p|%r|%S|%T'),date_format(19980131010203,'%H|%I|%k|%l|%i|%p|%r|%S|%T');
time_format(010203,'%H|%I|%k|%l|%i|%p|%r|%S|%T')	date_format(19980131010203,'%H|%I|%k|%l|%i|%p|%r|%S|%T')
01|01|1|1|02|AM|01:02:03 AM|03|01:02:03	01|01|1|1|02|AM|01:02:03 AM|03|01:02:03
select time_format(131415,'%H|%I|%k|%l|%i|%p|%r|%S|%T'),date_format(19980131131415,'%H|%I|%k|%l|%i|%p|%r|%S|%T');
time_format(131415,'%H|%I|%k|%l|%i|%p|%r|%S|%T')	date_format(19980131131415,'%H|%I|%k|%l|%i|%p|%r|%S|%T')
13|01|13|1|14|PM|01:14:15 PM|15|13:14:15	13|01|13|1|14|PM|01:14:15 PM|15|13:14:15
select time_format(010015,'%H|%I|%k|%l|%i|%p|%r|%S|%T'),date_format(19980131010015,'%H|%I|%k|%l|%i|%p|%r|%S|%T');
time_format(010015,'%H|%I|%k|%l|%i|%p|%r|%S|%T')	date_format(19980131010015,'%H|%I|%k|%l|%i|%p|%r|%S|%T')
01|01|1|1|00|AM|01:00:15 AM|15|01:00:15	01|01|1|1|00|AM|01:00:15 AM|15|01:00:15
select date_format(concat('19980131',131415),'%H|%I|%k|%l|%i|%p|%r|%S|%T| %M|%W|%D|%Y|%y|%a|%b|%j|%m|%d|%h|%s|%w');
date_format(concat('19980131',131415),'%H|%I|%k|%l|%i|%p|%r|%S|%T| %M|%W|%D|%Y|%y|%a|%b|%j|%m|%d|%h|%s|%w')
13|01|13|1|14|PM|01:14:15 PM|15|13:14:15| January|Saturday|31st|1998|98|Sat|Jan|031|01|31|01|15|6
select date_format(19980021000000,'%H|%I|%k|%l|%i|%p|%r|%S|%T| %M|%W|%D|%Y|%y|%a|%b|%j|%m|%d|%h|%s|%w');
date_format(19980021000000,'%H|%I|%k|%l|%i|%p|%r|%S|%T| %M|%W|%D|%Y|%y|%a|%b|%j|%m|%d|%h|%s|%w')
NULL
select date_add("1997-12-31 23:59:59",INTERVAL 1 SECOND);
date_add("1997-12-31 23:59:59",INTERVAL 1 SECOND)
1998-01-01 00:00:00
select date_add("1997-12-31 23:59:59",INTERVAL 1 MINUTE);
date_add("1997-12-31 23:59:59",INTERVAL 1 MINUTE)
1998-01-01 00:00:59
select date_add("1997-12-31 23:59:59",INTERVAL 1 HOUR);
date_add("1997-12-31 23:59:59",INTERVAL 1 HOUR)
1998-01-01 00:59:59
select date_add("1997-12-31 23:59:59",INTERVAL 1 DAY);
date_add("1997-12-31 23:59:59",INTERVAL 1 DAY)
1998-01-01 23:59:59
select date_add("1997-12-31 23:59:59",INTERVAL 1 MONTH);
date_add("1997-12-31 23:59:59",INTERVAL 1 MONTH)
1998-01-31 23:59:59
select date_add("1997-12-31 23:59:59",INTERVAL 1 YEAR);
date_add("1997-12-31 23:59:59",INTERVAL 1 YEAR)
1998-12-31 23:59:59
select date_add("1997-12-31 23:59:59",INTERVAL "1:1" MINUTE_SECOND);
date_add("1997-12-31 23:59:59",INTERVAL "1:1" MINUTE_SECOND)
1998-01-01 00:01:00
select date_add("1997-12-31 23:59:59",INTERVAL "1:1" HOUR_MINUTE);
date_add("1997-12-31 23:59:59",INTERVAL "1:1" HOUR_MINUTE)
1998-01-01 01:00:59
select date_add("1997-12-31 23:59:59",INTERVAL "1:1" DAY_HOUR);
date_add("1997-12-31 23:59:59",INTERVAL "1:1" DAY_HOUR)
1998-01-02 00:59:59
select date_add("1997-12-31 23:59:59",INTERVAL "1 1" YEAR_MONTH);
date_add("1997-12-31 23:59:59",INTERVAL "1 1" YEAR_MONTH)
1999-01-31 23:59:59
select date_add("1997-12-31 23:59:59",INTERVAL "1:1:1" HOUR_SECOND);
date_add("1997-12-31 23:59:59",INTERVAL "1:1:1" HOUR_SECOND)
1998-01-01 01:01:00
select date_add("1997-12-31 23:59:59",INTERVAL "1 1:1" DAY_MINUTE);
date_add("1997-12-31 23:59:59",INTERVAL "1 1:1" DAY_MINUTE)
1998-01-02 01:00:59
select date_add("1997-12-31 23:59:59",INTERVAL "1 1:1:1" DAY_SECOND);
date_add("1997-12-31 23:59:59",INTERVAL "1 1:1:1" DAY_SECOND)
1998-01-02 01:01:00
select date_sub("1998-01-01 00:00:00",INTERVAL 1 SECOND);
date_sub("1998-01-01 00:00:00",INTERVAL 1 SECOND)
1997-12-31 23:59:59
select date_sub("1998-01-01 00:00:00",INTERVAL 1 MINUTE);
date_sub("1998-01-01 00:00:00",INTERVAL 1 MINUTE)
1997-12-31 23:59:00
select date_sub("1998-01-01 00:00:00",INTERVAL 1 HOUR);
date_sub("1998-01-01 00:00:00",INTERVAL 1 HOUR)
1997-12-31 23:00:00
select date_sub("1998-01-01 00:00:00",INTERVAL 1 DAY);
date_sub("1998-01-01 00:00:00",INTERVAL 1 DAY)
1997-12-31 00:00:00
select date_sub("1998-01-01 00:00:00",INTERVAL 1 MONTH);
date_sub("1998-01-01 00:00:00",INTERVAL 1 MONTH)
1997-12-01 00:00:00
select date_sub("1998-01-01 00:00:00",INTERVAL 1 YEAR);
date_sub("1998-01-01 00:00:00",INTERVAL 1 YEAR)
1997-01-01 00:00:00
select date_sub("1998-01-01 00:00:00",INTERVAL "1:1" MINUTE_SECOND);
date_sub("1998-01-01 00:00:00",INTERVAL "1:1" MINUTE_SECOND)
1997-12-31 23:58:59
select date_sub("1998-01-01 00:00:00",INTERVAL "1:1" HOUR_MINUTE);
date_sub("1998-01-01 00:00:00",INTERVAL "1:1" HOUR_MINUTE)
1997-12-31 22:59:00
select date_sub("1998-01-01 00:00:00",INTERVAL "1:1" DAY_HOUR);
date_sub("1998-01-01 00:00:00",INTERVAL "1:1" DAY_HOUR)
1997-12-30 23:00:00
select date_sub("1998-01-01 00:00:00",INTERVAL "1 1" YEAR_MONTH);
date_sub("1998-01-01 00:00:00",INTERVAL "1 1" YEAR_MONTH)
1996-12-01 00:00:00
select date_sub("1998-01-01 00:00:00",INTERVAL "1:1:1" HOUR_SECOND);
date_sub("1998-01-01 00:00:00",INTERVAL "1:1:1" HOUR_SECOND)
1997-12-31 22:58:59
select date_sub("1998-01-01 00:00:00",INTERVAL "1 1:1" DAY_MINUTE);
date_sub("1998-01-01 00:00:00",INTERVAL "1 1:1" DAY_MINUTE)
1997-12-30 22:59:00
select date_sub("1998-01-01 00:00:00",INTERVAL "1 1:1:1" DAY_SECOND);
date_sub("1998-01-01 00:00:00",INTERVAL "1 1:1:1" DAY_SECOND)
1997-12-30 22:58:59
select date_add("1997-12-31 23:59:59",INTERVAL 100000 SECOND);
date_add("1997-12-31 23:59:59",INTERVAL 100000 SECOND)
1998-01-02 03:46:39
select date_add("1997-12-31 23:59:59",INTERVAL -100000 MINUTE);
date_add("1997-12-31 23:59:59",INTERVAL -100000 MINUTE)
1997-10-23 13:19:59
select date_add("1997-12-31 23:59:59",INTERVAL 100000 HOUR);
date_add("1997-12-31 23:59:59",INTERVAL 100000 HOUR)
2009-05-29 15:59:59
select date_add("1997-12-31 23:59:59",INTERVAL -100000 DAY);
date_add("1997-12-31 23:59:59",INTERVAL -100000 DAY)
1724-03-17 23:59:59
select date_add("1997-12-31 23:59:59",INTERVAL 100000 MONTH);
date_add("1997-12-31 23:59:59",INTERVAL 100000 MONTH)
NULL
Warnings:
Warning	1441	Datetime function: datetime field overflow
select date_add("1997-12-31 23:59:59",INTERVAL -100000 YEAR);
date_add("1997-12-31 23:59:59",INTERVAL -100000 YEAR)
NULL
Warnings:
Warning	1441	Datetime function: datetime field overflow
select date_add("1997-12-31 23:59:59",INTERVAL "10000:1" MINUTE_SECOND);
date_add("1997-12-31 23:59:59",INTERVAL "10000:1" MINUTE_SECOND)
1998-01-07 22:40:00
select date_add("1997-12-31 23:59:59",INTERVAL "-10000:1" HOUR_MINUTE);
date_add("1997-12-31 23:59:59",INTERVAL "-10000:1" HOUR_MINUTE)
1996-11-10 07:58:59
select date_add("1997-12-31 23:59:59",INTERVAL "10000:1" DAY_HOUR);
date_add("1997-12-31 23:59:59",INTERVAL "10000:1" DAY_HOUR)
2025-05-19 00:59:59
select date_add("1997-12-31 23:59:59",INTERVAL "-100 1" YEAR_MONTH);
date_add("1997-12-31 23:59:59",INTERVAL "-100 1" YEAR_MONTH)
1897-11-30 23:59:59
select date_add("1997-12-31 23:59:59",INTERVAL "10000:99:99" HOUR_SECOND);
date_add("1997-12-31 23:59:59",INTERVAL "10000:99:99" HOUR_SECOND)
1999-02-21 17:40:38
select date_add("1997-12-31 23:59:59",INTERVAL " -10000 99:99" DAY_MINUTE);
date_add("1997-12-31 23:59:59",INTERVAL " -10000 99:99" DAY_MINUTE)
1970-08-11 19:20:59
select date_add("1997-12-31 23:59:59",INTERVAL "10000 99:99:99" DAY_SECOND);
date_add("1997-12-31 23:59:59",INTERVAL "10000 99:99:99" DAY_SECOND)
2025-05-23 04:40:38
select "1997-12-31 23:59:59" + INTERVAL 1 SECOND;
"1997-12-31 23:59:59" + INTERVAL 1 SECOND
1998-01-01 00:00:00
select INTERVAL 1 DAY + "1997-12-31";
INTERVAL 1 DAY + "1997-12-31"
1998-01-01
select "1998-01-01 00:00:00" - INTERVAL 1 SECOND;
"1998-01-01 00:00:00" - INTERVAL 1 SECOND
1997-12-31 23:59:59
select date_sub("1998-01-02",INTERVAL 31 DAY);
date_sub("1998-01-02",INTERVAL 31 DAY)
1997-12-02
select date_add("1997-12-31",INTERVAL 1 SECOND);
date_add("1997-12-31",INTERVAL 1 SECOND)
1997-12-31 00:00:01
select date_add("1997-12-31",INTERVAL 1 DAY);
date_add("1997-12-31",INTERVAL 1 DAY)
1998-01-01
select date_add(NULL,INTERVAL 100000 SECOND);
date_add(NULL,INTERVAL 100000 SECOND)
NULL
select date_add("1997-12-31 23:59:59",INTERVAL NULL SECOND);
date_add("1997-12-31 23:59:59",INTERVAL NULL SECOND)
NULL
select date_add("1997-12-31 23:59:59",INTERVAL NULL MINUTE_SECOND);
date_add("1997-12-31 23:59:59",INTERVAL NULL MINUTE_SECOND)
NULL
select date_add("9999-12-31 23:59:59",INTERVAL 1 SECOND);
date_add("9999-12-31 23:59:59",INTERVAL 1 SECOND)
NULL
Warnings:
Warning	1441	Datetime function: datetime field overflow
select date_sub("0000-00-00 00:00:00",INTERVAL 1 SECOND);
date_sub("0000-00-00 00:00:00",INTERVAL 1 SECOND)
NULL
Warnings:
Warning	1292	Incorrect datetime value: '0000-00-00 00:00:00'
select date_add('1998-01-30',Interval 1 month);
date_add('1998-01-30',Interval 1 month)
1998-02-28
select date_add('1998-01-30',Interval '2:1' year_month);
date_add('1998-01-30',Interval '2:1' year_month)
2000-02-29
select date_add('1996-02-29',Interval '1' year);
date_add('1996-02-29',Interval '1' year)
1997-02-28
select extract(YEAR FROM "1999-01-02 10:11:12");
extract(YEAR FROM "1999-01-02 10:11:12")
1999
select extract(YEAR_MONTH FROM "1999-01-02");
extract(YEAR_MONTH FROM "1999-01-02")
199901
select extract(DAY FROM "1999-01-02");
extract(DAY FROM "1999-01-02")
2
select extract(DAY_HOUR FROM "1999-01-02 10:11:12");
extract(DAY_HOUR FROM "1999-01-02 10:11:12")
210
select extract(DAY_MINUTE FROM "02 10:11:12");
extract(DAY_MINUTE FROM "02 10:11:12")
21011
select extract(DAY_SECOND FROM "225 10:11:12");
extract(DAY_SECOND FROM "225 10:11:12")
8385959
Warnings:
Warning	1292	Truncated incorrect time value: '225 10:11:12'
select extract(HOUR FROM "1999-01-02 10:11:12");
extract(HOUR FROM "1999-01-02 10:11:12")
10
select extract(HOUR_MINUTE FROM "10:11:12");
extract(HOUR_MINUTE FROM "10:11:12")
1011
select extract(HOUR_SECOND FROM "10:11:12");
extract(HOUR_SECOND FROM "10:11:12")
101112
select extract(MINUTE FROM "10:11:12");
extract(MINUTE FROM "10:11:12")
11
select extract(MINUTE_SECOND FROM "10:11:12");
extract(MINUTE_SECOND FROM "10:11:12")
1112
select extract(SECOND FROM "1999-01-02 10:11:12");
extract(SECOND FROM "1999-01-02 10:11:12")
12
select extract(MONTH FROM "2001-02-00");
extract(MONTH FROM "2001-02-00")
2
SELECT EXTRACT(QUARTER FROM '2004-01-15') AS quarter;
quarter
1
SELECT EXTRACT(QUARTER FROM '2004-02-15') AS quarter;
quarter
1
SELECT EXTRACT(QUARTER FROM '2004-03-15') AS quarter;
quarter
1
SELECT EXTRACT(QUARTER FROM '2004-04-15') AS quarter;
quarter
2
SELECT EXTRACT(QUARTER FROM '2004-05-15') AS quarter;
quarter
2
SELECT EXTRACT(QUARTER FROM '2004-06-15') AS quarter;
quarter
2
SELECT EXTRACT(QUARTER FROM '2004-07-15') AS quarter;
quarter
3
SELECT EXTRACT(QUARTER FROM '2004-08-15') AS quarter;
quarter
3
SELECT EXTRACT(QUARTER FROM '2004-09-15') AS quarter;
quarter
3
SELECT EXTRACT(QUARTER FROM '2004-10-15') AS quarter;
quarter
4
SELECT EXTRACT(QUARTER FROM '2004-11-15') AS quarter;
quarter
4
SELECT EXTRACT(QUARTER FROM '2004-12-15') AS quarter;
quarter
4
SELECT DATE_SUB(str_to_date('9999-12-31 00:01:00','%Y-%m-%d %H:%i:%s'), INTERVAL 1 MINUTE);
DATE_SUB(str_to_date('9999-12-31 00:01:00','%Y-%m-%d %H:%i:%s'), INTERVAL 1 MINUTE)
9999-12-31 00:00:00
SELECT DATE_ADD(str_to_date('9999-12-30 23:59:00','%Y-%m-%d %H:%i:%s'), INTERVAL 1 MINUTE);
DATE_ADD(str_to_date('9999-12-30 23:59:00','%Y-%m-%d %H:%i:%s'), INTERVAL 1 MINUTE)
9999-12-31 00:00:00
SELECT "1900-01-01 00:00:00" + INTERVAL 2147483648 SECOND;
"1900-01-01 00:00:00" + INTERVAL 2147483648 SECOND
1968-01-20 03:14:08
SELECT "1900-01-01 00:00:00" + INTERVAL "1:2147483647" MINUTE_SECOND;
"1900-01-01 00:00:00" + INTERVAL "1:2147483647" MINUTE_SECOND
1968-01-20 03:15:07
SELECT "1900-01-01 00:00:00" + INTERVAL "100000000:214748364700" MINUTE_SECOND;
"1900-01-01 00:00:00" + INTERVAL "100000000:214748364700" MINUTE_SECOND
8895-03-27 22:11:40
SELECT "1900-01-01 00:00:00" + INTERVAL 1<<37 SECOND;
"1900-01-01 00:00:00" + INTERVAL 1<<37 SECOND
6255-04-08 15:04:32
SELECT "1900-01-01 00:00:00" + INTERVAL 1<<31 MINUTE;
"1900-01-01 00:00:00" + INTERVAL 1<<31 MINUTE
5983-01-24 02:08:00
SELECT "1900-01-01 00:00:00" + INTERVAL 1<<20 HOUR;
"1900-01-01 00:00:00" + INTERVAL 1<<20 HOUR
2019-08-15 16:00:00
SELECT "1900-01-01 00:00:00" + INTERVAL 1<<38 SECOND;
"1900-01-01 00:00:00" + INTERVAL 1<<38 SECOND
NULL
Warnings:
Warning	1441	Datetime function: datetime field overflow
SELECT "1900-01-01 00:00:00" + INTERVAL 1<<33 MINUTE;
"1900-01-01 00:00:00" + INTERVAL 1<<33 MINUTE
NULL
Warnings:
Warning	1441	Datetime function: datetime field overflow
SELECT "1900-01-01 00:00:00" + INTERVAL 1<<30 HOUR;
"1900-01-01 00:00:00" + INTERVAL 1<<30 HOUR
NULL
Warnings:
Warning	1441	Datetime function: datetime field overflow
SELECT "1900-01-01 00:00:00" + INTERVAL "1000000000:214748364700" MINUTE_SECOND;
"1900-01-01 00:00:00" + INTERVAL "1000000000:214748364700" MINUTE_SECOND
NULL
Warnings:
Warning	1441	Datetime function: datetime field overflow
create table t1 (ctime varchar(20));
insert into t1 values ('2001-01-12 12:23:40');
select ctime, hour(ctime) from t1;
ctime	hour(ctime)
2001-01-12 12:23:40	12
select ctime from t1 where extract(MONTH FROM ctime) = 1 AND extract(YEAR FROM ctime) = 2001;
ctime
2001-01-12 12:23:40
drop table t1;
create table t1 (id int);
create table t2 (id int, date date);
insert into t1 values (1);
insert into t2 values (1, "0000-00-00");
insert into t1 values (2);
insert into t2 values (2, "2000-01-01");
select monthname(date) from t1 inner join t2 on t1.id = t2.id;
monthname(date)
NULL
January
select monthname(date) from t1 inner join t2 on t1.id = t2.id order by t1.id;
monthname(date)
NULL
January
drop table t1,t2;
CREATE TABLE t1 (updated text) ENGINE=MyISAM;
INSERT INTO t1 VALUES ('');
SELECT month(updated) from t1;
month(updated)
NULL
Warnings:
Warning	1292	Incorrect datetime value: ''
SELECT year(updated) from t1;
year(updated)
NULL
Warnings:
Warning	1292	Incorrect datetime value: ''
drop table t1;
create table t1 (d date, dt datetime, t timestamp, c char(10));
insert into t1 values ("0000-00-00", "0000-00-00", "0000-00-00", "0000-00-00");
select dayofyear("0000-00-00"),dayofyear(d),dayofyear(dt),dayofyear(t),dayofyear(c) from t1;
dayofyear("0000-00-00")	dayofyear(d)	dayofyear(dt)	dayofyear(t)	dayofyear(c)
NULL	NULL	NULL	NULL	NULL
Warnings:
Warning	1292	Incorrect datetime value: '0000-00-00'
Warning	1292	Incorrect datetime value: '0000-00-00'
select dayofmonth("0000-00-00"),dayofmonth(d),dayofmonth(dt),dayofmonth(t),dayofmonth(c) from t1;
dayofmonth("0000-00-00")	dayofmonth(d)	dayofmonth(dt)	dayofmonth(t)	dayofmonth(c)
0	0	0	0	0
select month("0000-00-00"),month(d),month(dt),month(t),month(c) from t1;
month("0000-00-00")	month(d)	month(dt)	month(t)	month(c)
0	0	0	0	0
select quarter("0000-00-00"),quarter(d),quarter(dt),quarter(t),quarter(c) from t1;
quarter("0000-00-00")	quarter(d)	quarter(dt)	quarter(t)	quarter(c)
0	0	0	0	0
select week("0000-00-00"),week(d),week(dt),week(t),week(c) from t1;
week("0000-00-00")	week(d)	week(dt)	week(t)	week(c)
NULL	NULL	NULL	NULL	NULL
Warnings:
Warning	1292	Incorrect datetime value: '0000-00-00'
Warning	1292	Incorrect datetime value: '0000-00-00'
select year("0000-00-00"),year(d),year(dt),year(t),year(c) from t1;
year("0000-00-00")	year(d)	year(dt)	year(t)	year(c)
0	0	0	0	0
select yearweek("0000-00-00"),yearweek(d),yearweek(dt),yearweek(t),yearweek(c) from t1;
yearweek("0000-00-00")	yearweek(d)	yearweek(dt)	yearweek(t)	yearweek(c)
NULL	NULL	NULL	NULL	NULL
Warnings:
Warning	1292	Incorrect datetime value: '0000-00-00'
Warning	1292	Incorrect datetime value: '0000-00-00'
select to_days("0000-00-00"),to_days(d),to_days(dt),to_days(t),to_days(c) from t1;
to_days("0000-00-00")	to_days(d)	to_days(dt)	to_days(t)	to_days(c)
NULL	NULL	NULL	NULL	NULL
Warnings:
Warning	1292	Incorrect datetime value: '0000-00-00'
Warning	1292	Incorrect datetime value: '0000-00-00'
select extract(MONTH FROM "0000-00-00"),extract(MONTH FROM d),extract(MONTH FROM dt),extract(MONTH FROM t),extract(MONTH FROM c) from t1;
extract(MONTH FROM "0000-00-00")	extract(MONTH FROM d)	extract(MONTH FROM dt)	extract(MONTH FROM t)	extract(MONTH FROM c)
0	0	0	0	0
drop table t1;
CREATE TABLE t1 ( start datetime default NULL);
INSERT INTO t1 VALUES ('2002-10-21 00:00:00'),('2002-10-28 00:00:00'),('2002-11-04 00:00:00');
CREATE TABLE t2 ( ctime1 timestamp NOT NULL, ctime2 timestamp NOT NULL);
INSERT INTO t2 VALUES (20021029165106,20021105164731);
CREATE TABLE t3 (ctime1 char(19) NOT NULL, ctime2 char(19) NOT NULL);
INSERT INTO t3 VALUES ("2002-10-29 16:51:06","2002-11-05 16:47:31");
select * from t1, t2 where t1.start between t2.ctime1 and t2.ctime2;
start	ctime1	ctime2
2002-11-04 00:00:00	2002-10-29 16:51:06	2002-11-05 16:47:31
select * from t1, t2 where t1.start >= t2.ctime1 and t1.start <= t2.ctime2;
start	ctime1	ctime2
2002-11-04 00:00:00	2002-10-29 16:51:06	2002-11-05 16:47:31
select * from t1, t3 where t1.start between t3.ctime1 and t3.ctime2;
start	ctime1	ctime2
2002-11-04 00:00:00	2002-10-29 16:51:06	2002-11-05 16:47:31
drop table t1,t2,t3;
select @a:=FROM_UNIXTIME(1);
@a:=FROM_UNIXTIME(1)
1970-01-01 03:00:01
select unix_timestamp(@a);
unix_timestamp(@a)
1
select unix_timestamp('1969-12-01 19:00:01');
unix_timestamp('1969-12-01 19:00:01')
NULL
select from_unixtime(-1);
from_unixtime(-1)
NULL
select from_unixtime(2147483647);
from_unixtime(2147483647)
2038-01-19 06:14:07
select from_unixtime(2147483648);
from_unixtime(2147483648)
NULL
select from_unixtime(0);
from_unixtime(0)
1970-01-01 03:00:00
select unix_timestamp(from_unixtime(2147483647));
unix_timestamp(from_unixtime(2147483647))
2147483647
select unix_timestamp(from_unixtime(2147483648));
unix_timestamp(from_unixtime(2147483648))
NULL
select unix_timestamp('2039-01-20 01:00:00');
unix_timestamp('2039-01-20 01:00:00')
NULL
select unix_timestamp('1968-01-20 01:00:00');
unix_timestamp('1968-01-20 01:00:00')
NULL
select unix_timestamp('2038-02-10 01:00:00');
unix_timestamp('2038-02-10 01:00:00')
NULL
select unix_timestamp('1969-11-20 01:00:00');
unix_timestamp('1969-11-20 01:00:00')
NULL
select unix_timestamp('2038-01-20 01:00:00');
unix_timestamp('2038-01-20 01:00:00')
NULL
select unix_timestamp('1969-12-30 01:00:00');
unix_timestamp('1969-12-30 01:00:00')
NULL
select unix_timestamp('2038-01-17 12:00:00');
unix_timestamp('2038-01-17 12:00:00')
2147331600
select unix_timestamp('1970-01-01 03:00:01');
unix_timestamp('1970-01-01 03:00:01')
1
select unix_timestamp('2038-01-19 07:14:07');
unix_timestamp('2038-01-19 07:14:07')
NULL
SELECT CHARSET(DAYNAME(19700101));
CHARSET(DAYNAME(19700101))
latin1
SELECT CHARSET(MONTHNAME(19700101));
CHARSET(MONTHNAME(19700101))
latin1
SELECT LOWER(DAYNAME(19700101));
LOWER(DAYNAME(19700101))
thursday
SELECT LOWER(MONTHNAME(19700101));
LOWER(MONTHNAME(19700101))
january
SELECT COERCIBILITY(MONTHNAME('1970-01-01')),COERCIBILITY(DAYNAME('1970-01-01'));
COERCIBILITY(MONTHNAME('1970-01-01'))	COERCIBILITY(DAYNAME('1970-01-01'))
4	4
CREATE TABLE t1 (datetime datetime, timestamp timestamp, date date, time time);
INSERT INTO t1 values ("2001-01-02 03:04:05", "2002-01-02 03:04:05", "2003-01-02", "06:07:08");
SELECT * from t1;
datetime	timestamp	date	time
2001-01-02 03:04:05	2002-01-02 03:04:05	2003-01-02	06:07:08
select date_add("1997-12-31",INTERVAL 1 SECOND);
date_add("1997-12-31",INTERVAL 1 SECOND)
1997-12-31 00:00:01
select date_add("1997-12-31",INTERVAL "1 1" YEAR_MONTH);
date_add("1997-12-31",INTERVAL "1 1" YEAR_MONTH)
1999-01-31
select date_add(datetime, INTERVAL 1 SECOND) from t1;
date_add(datetime, INTERVAL 1 SECOND)
2001-01-02 03:04:06
select date_add(datetime, INTERVAL 1 YEAR) from t1;
date_add(datetime, INTERVAL 1 YEAR)
2002-01-02 03:04:05
select date_add(date,INTERVAL 1 SECOND) from t1;
date_add(date,INTERVAL 1 SECOND)
2003-01-02 00:00:01
select date_add(date,INTERVAL 1 MINUTE) from t1;
date_add(date,INTERVAL 1 MINUTE)
2003-01-02 00:01:00
select date_add(date,INTERVAL 1 HOUR) from t1;
date_add(date,INTERVAL 1 HOUR)
2003-01-02 01:00:00
select date_add(date,INTERVAL 1 DAY) from t1;
date_add(date,INTERVAL 1 DAY)
2003-01-03
select date_add(date,INTERVAL 1 MONTH) from t1;
date_add(date,INTERVAL 1 MONTH)
2003-02-02
select date_add(date,INTERVAL 1 YEAR) from t1;
date_add(date,INTERVAL 1 YEAR)
2004-01-02
select date_add(date,INTERVAL "1:1" MINUTE_SECOND) from t1;
date_add(date,INTERVAL "1:1" MINUTE_SECOND)
2003-01-02 00:01:01
select date_add(date,INTERVAL "1:1" HOUR_MINUTE) from t1;
date_add(date,INTERVAL "1:1" HOUR_MINUTE)
2003-01-02 01:01:00
select date_add(date,INTERVAL "1:1" DAY_HOUR) from t1;
date_add(date,INTERVAL "1:1" DAY_HOUR)
2003-01-03 01:00:00
select date_add(date,INTERVAL "1 1" YEAR_MONTH) from t1;
date_add(date,INTERVAL "1 1" YEAR_MONTH)
2004-02-02
select date_add(date,INTERVAL "1:1:1" HOUR_SECOND) from t1;
date_add(date,INTERVAL "1:1:1" HOUR_SECOND)
2003-01-02 01:01:01
select date_add(date,INTERVAL "1 1:1" DAY_MINUTE) from t1;
date_add(date,INTERVAL "1 1:1" DAY_MINUTE)
2003-01-03 01:01:00
select date_add(date,INTERVAL "1 1:1:1" DAY_SECOND) from t1;
date_add(date,INTERVAL "1 1:1:1" DAY_SECOND)
2003-01-03 01:01:01
select date_add(date,INTERVAL "1" WEEK) from t1;
date_add(date,INTERVAL "1" WEEK)
2003-01-09
select date_add(date,INTERVAL "1" QUARTER) from t1;
date_add(date,INTERVAL "1" QUARTER)
2003-04-02
select timestampadd(MINUTE, 1, date) from t1;
timestampadd(MINUTE, 1, date)
2003-01-02 00:01:00
select timestampadd(WEEK, 1, date) from t1;
timestampadd(WEEK, 1, date)
2003-01-09
select timestampadd(SQL_TSI_SECOND, 1, date) from t1;
timestampadd(SQL_TSI_SECOND, 1, date)
2003-01-02 00:00:01
select timestampdiff(MONTH, '2001-02-01', '2001-05-01') as a;
a
3
select timestampdiff(YEAR, '2002-05-01', '2001-01-01') as a;
a
-1
select timestampdiff(QUARTER, '2002-05-01', '2001-01-01') as a;
a
-5
select timestampdiff(MONTH, '2000-03-28', '2000-02-29') as a;
a
0
select timestampdiff(MONTH, '1991-03-28', '2000-02-29') as a;
a
107
select timestampdiff(SQL_TSI_WEEK, '2001-02-01', '2001-05-01') as a;
a
12
select timestampdiff(SQL_TSI_HOUR, '2001-02-01', '2001-05-01') as a;
a
2136
select timestampdiff(SQL_TSI_DAY, '2001-02-01', '2001-05-01') as a;
a
89
select timestampdiff(SQL_TSI_MINUTE, '2001-02-01 12:59:59', '2001-05-01 12:58:59') as a;
a
128159
select timestampdiff(SQL_TSI_SECOND, '2001-02-01 12:59:59', '2001-05-01 12:58:58') as a;
a
7689539
select timestampdiff(SQL_TSI_DAY, '1986-02-01', '1986-03-01') as a1,
timestampdiff(SQL_TSI_DAY, '1900-02-01', '1900-03-01') as a2,
timestampdiff(SQL_TSI_DAY, '1996-02-01', '1996-03-01') as a3,
timestampdiff(SQL_TSI_DAY, '2000-02-01', '2000-03-01') as a4;
a1	a2	a3	a4
28	28	29	29
SELECT TIMESTAMPDIFF(day,'2006-01-10 14:30:28','2006-01-11 14:30:27');
TIMESTAMPDIFF(day,'2006-01-10 14:30:28','2006-01-11 14:30:27')
0
SELECT TIMESTAMPDIFF(day,'2006-01-10 14:30:28','2006-01-11 14:30:28');
TIMESTAMPDIFF(day,'2006-01-10 14:30:28','2006-01-11 14:30:28')
1
SELECT TIMESTAMPDIFF(day,'2006-01-10 14:30:28','2006-01-11 14:30:29');
TIMESTAMPDIFF(day,'2006-01-10 14:30:28','2006-01-11 14:30:29')
1
SELECT TIMESTAMPDIFF(day,'2006-01-10 14:30:28','2006-01-12 14:30:27');
TIMESTAMPDIFF(day,'2006-01-10 14:30:28','2006-01-12 14:30:27')
1
SELECT TIMESTAMPDIFF(day,'2006-01-10 14:30:28','2006-01-12 14:30:28');
TIMESTAMPDIFF(day,'2006-01-10 14:30:28','2006-01-12 14:30:28')
2
SELECT TIMESTAMPDIFF(day,'2006-01-10 14:30:28','2006-01-12 14:30:29');
TIMESTAMPDIFF(day,'2006-01-10 14:30:28','2006-01-12 14:30:29')
2
SELECT TIMESTAMPDIFF(week,'2006-01-10 14:30:28','2006-01-17 14:30:27');
TIMESTAMPDIFF(week,'2006-01-10 14:30:28','2006-01-17 14:30:27')
0
SELECT TIMESTAMPDIFF(week,'2006-01-10 14:30:28','2006-01-17 14:30:28');
TIMESTAMPDIFF(week,'2006-01-10 14:30:28','2006-01-17 14:30:28')
1
SELECT TIMESTAMPDIFF(week,'2006-01-10 14:30:28','2006-01-17 14:30:29');
TIMESTAMPDIFF(week,'2006-01-10 14:30:28','2006-01-17 14:30:29')
1
SELECT TIMESTAMPDIFF(week,'2006-01-10 14:30:28','2006-01-24 14:30:27');
TIMESTAMPDIFF(week,'2006-01-10 14:30:28','2006-01-24 14:30:27')
1
SELECT TIMESTAMPDIFF(week,'2006-01-10 14:30:28','2006-01-24 14:30:28');
TIMESTAMPDIFF(week,'2006-01-10 14:30:28','2006-01-24 14:30:28')
2
SELECT TIMESTAMPDIFF(week,'2006-01-10 14:30:28','2006-01-24 14:30:29');
TIMESTAMPDIFF(week,'2006-01-10 14:30:28','2006-01-24 14:30:29')
2
SELECT TIMESTAMPDIFF(month,'2006-01-10 14:30:28','2006-02-10 14:30:27');
TIMESTAMPDIFF(month,'2006-01-10 14:30:28','2006-02-10 14:30:27')
0
SELECT TIMESTAMPDIFF(month,'2006-01-10 14:30:28','2006-02-10 14:30:28');
TIMESTAMPDIFF(month,'2006-01-10 14:30:28','2006-02-10 14:30:28')
1
SELECT TIMESTAMPDIFF(month,'2006-01-10 14:30:28','2006-02-10 14:30:29');
TIMESTAMPDIFF(month,'2006-01-10 14:30:28','2006-02-10 14:30:29')
1
SELECT TIMESTAMPDIFF(month,'2006-01-10 14:30:28','2006-03-10 14:30:27');
TIMESTAMPDIFF(month,'2006-01-10 14:30:28','2006-03-10 14:30:27')
1
SELECT TIMESTAMPDIFF(month,'2006-01-10 14:30:28','2006-03-10 14:30:28');
TIMESTAMPDIFF(month,'2006-01-10 14:30:28','2006-03-10 14:30:28')
2
SELECT TIMESTAMPDIFF(month,'2006-01-10 14:30:28','2006-03-10 14:30:29');
TIMESTAMPDIFF(month,'2006-01-10 14:30:28','2006-03-10 14:30:29')
2
SELECT TIMESTAMPDIFF(year,'2006-01-10 14:30:28','2007-01-10 14:30:27');
TIMESTAMPDIFF(year,'2006-01-10 14:30:28','2007-01-10 14:30:27')
0
SELECT TIMESTAMPDIFF(year,'2006-01-10 14:30:28','2007-01-10 14:30:28');
TIMESTAMPDIFF(year,'2006-01-10 14:30:28','2007-01-10 14:30:28')
1
SELECT TIMESTAMPDIFF(year,'2006-01-10 14:30:28','2007-01-10 14:30:29');
TIMESTAMPDIFF(year,'2006-01-10 14:30:28','2007-01-10 14:30:29')
1
SELECT TIMESTAMPDIFF(year,'2006-01-10 14:30:28','2008-01-10 14:30:27');
TIMESTAMPDIFF(year,'2006-01-10 14:30:28','2008-01-10 14:30:27')
1
SELECT TIMESTAMPDIFF(year,'2006-01-10 14:30:28','2008-01-10 14:30:28');
TIMESTAMPDIFF(year,'2006-01-10 14:30:28','2008-01-10 14:30:28')
2
SELECT TIMESTAMPDIFF(year,'2006-01-10 14:30:28','2008-01-10 14:30:29');
TIMESTAMPDIFF(year,'2006-01-10 14:30:28','2008-01-10 14:30:29')
2
select date_add(time,INTERVAL 1 SECOND) from t1;
date_add(time,INTERVAL 1 SECOND)
06:07:09
drop table t1;
select last_day('2000-02-05') as f1, last_day('2002-12-31') as f2,
last_day('2003-03-32') as f3, last_day('2003-04-01') as f4,
last_day('2001-01-01 01:01:01') as f5, last_day(NULL),
last_day('2001-02-12');
f1	f2	f3	f4	f5	last_day(NULL)	last_day('2001-02-12')
2000-02-29	2002-12-31	NULL	2003-04-30	2001-01-31	NULL	2001-02-28
Warnings:
Warning	1292	Incorrect datetime value: '2003-03-32'
create table t1 select last_day('2000-02-05') as a,
from_days(to_days("960101")) as b;
describe t1;
Field	Type	Null	Key	Default	Extra
a	date	YES		NULL	
b	date	YES		NULL	
select * from t1;
a	b
2000-02-29	1996-01-01
drop table t1;
select last_day('2000-02-05') as a,
from_days(to_days("960101")) as b;
a	b
2000-02-29	1996-01-01
select date_add(last_day("1997-12-1"), INTERVAL 1 DAY);
date_add(last_day("1997-12-1"), INTERVAL 1 DAY)
1998-01-01
select length(last_day("1997-12-1"));
length(last_day("1997-12-1"))
10
select last_day("1997-12-1")+0;
last_day("1997-12-1")+0
19971231
select last_day("1997-12-1")+0.0;
last_day("1997-12-1")+0.0
19971231.0
select strcmp(date_sub(localtimestamp(), interval 3 hour), utc_timestamp())=0;
strcmp(date_sub(localtimestamp(), interval 3 hour), utc_timestamp())=0
1
select strcmp(date_format(date_sub(localtimestamp(), interval 3 hour),"%T"), utc_time())=0;
strcmp(date_format(date_sub(localtimestamp(), interval 3 hour),"%T"), utc_time())=0
1
select strcmp(date_format(date_sub(localtimestamp(), interval 3 hour),"%Y-%m-%d"), utc_date())=0;
strcmp(date_format(date_sub(localtimestamp(), interval 3 hour),"%Y-%m-%d"), utc_date())=0
1
select strcmp(date_format(utc_timestamp(),"%T"), utc_time())=0;
strcmp(date_format(utc_timestamp(),"%T"), utc_time())=0
1
select strcmp(date_format(utc_timestamp(),"%Y-%m-%d"), utc_date())=0;
strcmp(date_format(utc_timestamp(),"%Y-%m-%d"), utc_date())=0
1
select strcmp(concat(utc_date(),' ',utc_time()),utc_timestamp())=0;
strcmp(concat(utc_date(),' ',utc_time()),utc_timestamp())=0
1
explain extended select period_add("9602",-12),period_diff(199505,"9404"),from_days(to_days("960101")),dayofmonth("1997-01-02"), month("1997-01-02"), monthname("1972-03-04"),dayofyear("0000-00-00"),HOUR("1997-03-03 23:03:22"),MINUTE("23:03:22"),SECOND(230322),QUARTER(980303),WEEK("1998-03-03"),yearweek("2000-01-01",1),week(19950101,1),year("98-02-03"),weekday(curdate())-weekday(now()),dayname("1962-03-03"),unix_timestamp(),sec_to_time(time_to_sec("0:30:47")/6.21),curtime(),utc_time(),curdate(),utc_date(),utc_timestamp(),date_format("1997-01-02 03:04:05", "%M %W %D %Y %y %m %d %h %i %s %w"),from_unixtime(unix_timestamp("1994-03-02 10:11:12")),"1997-12-31 23:59:59" + INTERVAL 1 SECOND,"1998-01-01 00:00:00" - INTERVAL 1 SECOND,INTERVAL 1 DAY + "1997-12-31", extract(YEAR FROM "1999-01-02 10:11:12"),date_add("1997-12-31 23:59:59",INTERVAL 1 SECOND);
id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
1	SIMPLE	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	No tables used
Warnings:
Note	1003	select period_add('9602',-(12)) AS `period_add("9602",-12)`,period_diff(199505,'9404') AS `period_diff(199505,"9404")`,from_days(to_days('960101')) AS `from_days(to_days("960101"))`,dayofmonth('1997-01-02') AS `dayofmonth("1997-01-02")`,month('1997-01-02') AS `month("1997-01-02")`,monthname('1972-03-04') AS `monthname("1972-03-04")`,dayofyear('0000-00-00') AS `dayofyear("0000-00-00")`,hour('1997-03-03 23:03:22') AS `HOUR("1997-03-03 23:03:22")`,minute('23:03:22') AS `MINUTE("23:03:22")`,second(230322) AS `SECOND(230322)`,quarter(980303) AS `QUARTER(980303)`,week('1998-03-03',0) AS `WEEK("1998-03-03")`,yearweek('2000-01-01',1) AS `yearweek("2000-01-01",1)`,week(19950101,1) AS `week(19950101,1)`,year('98-02-03') AS `year("98-02-03")`,(weekday(curdate()) - weekday(now())) AS `weekday(curdate())-weekday(now())`,dayname('1962-03-03') AS `dayname("1962-03-03")`,unix_timestamp() AS `unix_timestamp()`,sec_to_time((time_to_sec('0:30:47') / 6.21)) AS `sec_to_time(time_to_sec("0:30:47")/6.21)`,curtime() AS `curtime()`,utc_time() AS `utc_time()`,curdate() AS `curdate()`,utc_date() AS `utc_date()`,utc_timestamp() AS `utc_timestamp()`,date_format('1997-01-02 03:04:05','%M %W %D %Y %y %m %d %h %i %s %w') AS `date_format("1997-01-02 03:04:05", "%M %W %D %Y %y %m %d %h %i %s %w")`,from_unixtime(unix_timestamp('1994-03-02 10:11:12')) AS `from_unixtime(unix_timestamp("1994-03-02 10:11:12"))`,('1997-12-31 23:59:59' + interval 1 second) AS `"1997-12-31 23:59:59" + INTERVAL 1 SECOND`,('1998-01-01 00:00:00' - interval 1 second) AS `"1998-01-01 00:00:00" - INTERVAL 1 SECOND`,('1997-12-31' + interval 1 day) AS `INTERVAL 1 DAY + "1997-12-31"`,extract(year from '1999-01-02 10:11:12') AS `extract(YEAR FROM "1999-01-02 10:11:12")`,('1997-12-31 23:59:59' + interval 1 second) AS `date_add("1997-12-31 23:59:59",INTERVAL 1 SECOND)`
SET @TMP='2007-08-01 12:22:49';
CREATE TABLE t1 (d DATETIME);
INSERT INTO t1 VALUES ('2007-08-01 12:22:59');
INSERT INTO t1 VALUES ('2007-08-01 12:23:01');
INSERT INTO t1 VALUES ('2007-08-01 12:23:20');
SELECT count(*) FROM t1 WHERE d>FROM_DAYS(TO_DAYS(@TMP)) AND d<=FROM_DAYS(TO_DAYS(@TMP)+1);
count(*)
3
DROP TABLE t1;
select last_day('2005-00-00');
last_day('2005-00-00')
NULL
select last_day('2005-00-01');
last_day('2005-00-01')
NULL
select last_day('2005-01-00');
last_day('2005-01-00')
2005-01-31
select monthname(str_to_date(null, '%m')), monthname(str_to_date(null, '%m')),
monthname(str_to_date(1, '%m')), monthname(str_to_date(0, '%m'));
monthname(str_to_date(null, '%m'))	monthname(str_to_date(null, '%m'))	monthname(str_to_date(1, '%m'))	monthname(str_to_date(0, '%m'))
NULL	NULL	January	NULL
set time_zone='-6:00';
create table t1(a timestamp);
insert into t1 values (19691231190001);
select * from t1;
a
1969-12-31 19:00:01
drop table t1;
create table t1(f1 date, f2 time, f3 datetime);
insert into t1 values ("2006-01-01", "12:01:01", "2006-01-01 12:01:01");
insert into t1 values ("2006-01-02", "12:01:02", "2006-01-02 12:01:02");
select f1 from t1 where f1 between CAST("2006-1-1" as date) and CAST(20060101 as date);
f1
2006-01-01
select f1 from t1 where f1 between cast("2006-1-1" as date) and cast("2006.1.1" as date);
f1
2006-01-01
select f1 from t1 where date(f1) between cast("2006-1-1" as date) and cast("2006.1.1" as date);
f1
2006-01-01
select f2 from t1 where f2 between cast("12:1:2" as time) and cast("12:2:2" as time);
f2
12:01:02
select f2 from t1 where time(f2) between cast("12:1:2" as time) and cast("12:2:2" as time);
f2
12:01:02
select f3 from t1 where f3 between cast("2006-1-1 12:1:1" as datetime) and cast("2006-1-1 12:1:2" as datetime);
f3
2006-01-01 12:01:01
select f3 from t1 where timestamp(f3) between cast("2006-1-1 12:1:1" as datetime) and cast("2006-1-1 12:1:2" as datetime);
f3
2006-01-01 12:01:01
select f1 from t1 where cast("2006-1-1" as date) between f1 and f3;
f1
2006-01-01
select f1 from t1 where cast("2006-1-1" as date) between date(f1) and date(f3);
f1
2006-01-01
select f1 from t1 where cast("2006-1-1" as date) between f1 and cast('zzz' as date);
f1
Warnings:
Warning	1292	Incorrect datetime value: 'zzz'
select f1 from t1 where makedate(2006,1) between date(f1) and date(f3);
f1
2006-01-01
select f1 from t1 where makedate(2006,2) between date(f1) and date(f3);
f1
2006-01-02
drop table t1;
create table t1 select now() - now(), curtime() - curtime(), 
sec_to_time(1) + 0, from_unixtime(1) + 0;
show create table t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `now() - now()` decimal(20,0) NOT NULL DEFAULT '0',
  `curtime() - curtime()` decimal(11,0) NOT NULL DEFAULT '0',
  `sec_to_time(1) + 0` decimal(11,0) DEFAULT NULL,
  `from_unixtime(1) + 0` decimal(20,0) DEFAULT NULL
) ENGINE=MyISAM DEFAULT CHARSET=latin1
drop table t1;
SELECT SEC_TO_TIME(3300000);
SEC_TO_TIME(3300000)
838:59:59
Warnings:
Warning	1292	Truncated incorrect time value: '3300000'
SELECT SEC_TO_TIME(3300000)+0;
SEC_TO_TIME(3300000)+0
8385959
Warnings:
Warning	1292	Truncated incorrect time value: '3300000'
SELECT SEC_TO_TIME(3600 * 4294967296);
SEC_TO_TIME(3600 * 4294967296)
838:59:59
Warnings:
Warning	1292	Truncated incorrect time value: '15461882265600'
SELECT TIME_TO_SEC('916:40:00');
TIME_TO_SEC('916:40:00')
3020399.999999
Warnings:
Warning	1292	Truncated incorrect time value: '916:40:00'
SELECT ADDTIME('500:00:00', '416:40:00');
ADDTIME('500:00:00', '416:40:00')
838:59:59.999999
Warnings:
Warning	1292	Truncated incorrect time value: '916:40:00'
SELECT ADDTIME('916:40:00', '416:40:00');
ADDTIME('916:40:00', '416:40:00')
838:59:59.999999
Warnings:
Warning	1292	Truncated incorrect time value: '916:40:00'
Warning	1292	Truncated incorrect time value: '1255:39:59.999999'
SELECT SUBTIME('916:40:00', '416:40:00');
SUBTIME('916:40:00', '416:40:00')
422:19:59.999999
Warnings:
Warning	1292	Truncated incorrect time value: '916:40:00'
SELECT SUBTIME('-916:40:00', '416:40:00');
SUBTIME('-916:40:00', '416:40:00')
-838:59:59.999999
Warnings:
Warning	1292	Truncated incorrect time value: '-916:40:00'
Warning	1292	Truncated incorrect time value: '-1255:39:59.999999'
SELECT MAKETIME(916,0,0);
MAKETIME(916,0,0)
838:59:59
Warnings:
Warning	1292	Truncated incorrect time value: '916:00:00'
SELECT MAKETIME(4294967296, 0, 0);
MAKETIME(4294967296, 0, 0)
838:59:59
Warnings:
Warning	1292	Truncated incorrect time value: '4294967296:00:00'
SELECT MAKETIME(-4294967296, 0, 0);
MAKETIME(-4294967296, 0, 0)
-838:59:59
Warnings:
Warning	1292	Truncated incorrect time value: '-4294967296:00:00'
SELECT MAKETIME(0, 4294967296, 0);
MAKETIME(0, 4294967296, 0)
NULL
SELECT MAKETIME(0, 0, 4294967296);
MAKETIME(0, 0, 4294967296)
NULL
SELECT MAKETIME(CAST(-1 AS UNSIGNED), 0, 0);
MAKETIME(CAST(-1 AS UNSIGNED), 0, 0)
838:59:59
Warnings:
Note	1105	Cast to unsigned converted negative integer to it's positive complement
Warning	1292	Truncated incorrect time value: '18446744073709551615:00:00'
SELECT EXTRACT(HOUR FROM '10000:02:03');
EXTRACT(HOUR FROM '10000:02:03')
838
Warnings:
Warning	1292	Truncated incorrect time value: '10000:02:03'
CREATE TABLE t1(f1 TIME);
INSERT INTO t1 VALUES('916:00:00 a');
Warnings:
Warning	1265	Data truncated for column 'f1' at row 1
Warning	1264	Out of range value for column 'f1' at row 1
SELECT * FROM t1;
f1
838:59:59
DROP TABLE t1;
SELECT SEC_TO_TIME(CAST(-1 AS UNSIGNED));
SEC_TO_TIME(CAST(-1 AS UNSIGNED))
838:59:59
Warnings:
Note	1105	Cast to unsigned converted negative integer to it's positive complement
Note	1105	Cast to unsigned converted negative integer to it's positive complement
Warning	1292	Truncated incorrect time value: '18446744073709551615'
SET NAMES latin1;
SET character_set_results = NULL;
SHOW VARIABLES LIKE 'character_set_results';
Variable_name	Value
character_set_results	
CREATE TABLE testBug8868 (field1 DATE, field2 VARCHAR(32) CHARACTER SET BINARY);
INSERT INTO testBug8868 VALUES ('2006-09-04', 'abcd');
SELECT DATE_FORMAT(field1,'%b-%e %l:%i%p') as fmtddate, field2 FROM testBug8868;
fmtddate	field2
Sep-4 12:00AM	abcd
DROP TABLE testBug8868;
SET NAMES DEFAULT;
CREATE TABLE t1 (
a TIMESTAMP
);
INSERT INTO t1 VALUES (now()), (now());
SELECT 1 FROM t1 ORDER BY MAKETIME(1, 1, a);
1
1
1
DROP TABLE t1;
(select time_format(timediff(now(), DATE_SUB(now(),INTERVAL 5 DAY)),'%H') As H)
union
(select time_format(timediff(now(), DATE_SUB(now(),INTERVAL 5 DAY)),'%H') As H);
H
120
(select time_format(timediff(now(), DATE_SUB(now(),INTERVAL 5 DAY)),'%k') As H)
union
(select time_format(timediff(now(), DATE_SUB(now(),INTERVAL 5 DAY)),'%k') As H);
H
120
(select time_format(timediff(now(), DATE_SUB(now(),INTERVAL 5 HOUR)),'%H') As H)
union
(select time_format(timediff(now(), DATE_SUB(now(),INTERVAL 5 HOUR)),'%H') As H);
H
05
(select time_format(timediff(now(), DATE_SUB(now(),INTERVAL 5 HOUR)),'%k') As H)
union
(select time_format(timediff(now(), DATE_SUB(now(),INTERVAL 5 HOUR)),'%k') As H);
H
5
select last_day('0000-00-00');
last_day('0000-00-00')
NULL
select isnull(week(now() + 0)), isnull(week(now() + 0.2)),
week(20061108), week(20061108.01), week(20061108085411.000002);
isnull(week(now() + 0))	isnull(week(now() + 0.2))	week(20061108)	week(20061108.01)	week(20061108085411.000002)
0	0	45	NULL	45
Warnings:
Warning	1292	Incorrect datetime value: '20061108.01'
End of 4.1 tests
select time_format('100:00:00', '%H %k %h %I %l');
time_format('100:00:00', '%H %k %h %I %l')
100 100 04 04 4
SET @old_log_bin_trust_function_creators= @@global.log_bin_trust_function_creators;
SET GLOBAL log_bin_trust_function_creators = 1;
create table t1 (a timestamp default '2005-05-05 01:01:01',
b timestamp default '2005-05-05 01:01:01');
drop function if exists t_slow_sysdate;
create function t_slow_sysdate() returns timestamp
begin
do sleep(2);
return sysdate();
end;
//
insert into t1 set a = sysdate(), b = t_slow_sysdate();//
create trigger t_before before insert on t1
for each row begin
set new.b = t_slow_sysdate();
end
//
insert into t1 set a = sysdate();
select a != b from t1;
a != b
1
1
drop trigger t_before;
drop function t_slow_sysdate;
drop table t1;
SET GLOBAL log_bin_trust_function_creators = 0;
create table t1 (a datetime, i int, b datetime);
insert into t1 select sysdate(), sleep(2), sysdate() from dual;
select a != b from t1;
a != b
1
drop table t1;
create procedure t_sysdate()
begin
select sysdate() into @a;
do sleep(2);
select sysdate() into @b;
select @a != @b;
end;
//
call t_sysdate();
@a != @b
1
drop procedure t_sysdate;
SET @@global.log_bin_trust_function_creators= @old_log_bin_trust_function_creators;
select timestampdiff(month,'2004-09-11','2004-09-11');
timestampdiff(month,'2004-09-11','2004-09-11')
0
select timestampdiff(month,'2004-09-11','2005-09-11');
timestampdiff(month,'2004-09-11','2005-09-11')
12
select timestampdiff(month,'2004-09-11','2006-09-11');
timestampdiff(month,'2004-09-11','2006-09-11')
24
select timestampdiff(month,'2004-09-11','2007-09-11');
timestampdiff(month,'2004-09-11','2007-09-11')
36
select timestampdiff(month,'2005-09-11','2004-09-11');
timestampdiff(month,'2005-09-11','2004-09-11')
-12
select timestampdiff(month,'2005-09-11','2003-09-11');
timestampdiff(month,'2005-09-11','2003-09-11')
-24
select timestampdiff(month,'2004-02-28','2005-02-28');
timestampdiff(month,'2004-02-28','2005-02-28')
12
select timestampdiff(month,'2004-02-29','2005-02-28');
timestampdiff(month,'2004-02-29','2005-02-28')
11
select timestampdiff(month,'2004-02-28','2005-02-28');
timestampdiff(month,'2004-02-28','2005-02-28')
12
select timestampdiff(month,'2004-03-29','2005-03-28');
timestampdiff(month,'2004-03-29','2005-03-28')
11
select timestampdiff(month,'2003-02-28','2004-02-29');
timestampdiff(month,'2003-02-28','2004-02-29')
12
select timestampdiff(month,'2003-02-28','2005-02-28');
timestampdiff(month,'2003-02-28','2005-02-28')
24
select timestampdiff(month,'1999-09-11','2001-10-10');
timestampdiff(month,'1999-09-11','2001-10-10')
24
select timestampdiff(month,'1999-09-11','2001-9-11');
timestampdiff(month,'1999-09-11','2001-9-11')
24
select timestampdiff(year,'1999-09-11','2001-9-11');
timestampdiff(year,'1999-09-11','2001-9-11')
2
select timestampdiff(year,'2004-02-28','2005-02-28');
timestampdiff(year,'2004-02-28','2005-02-28')
1
select timestampdiff(year,'2004-02-29','2005-02-28');
timestampdiff(year,'2004-02-29','2005-02-28')
0
CREATE TABLE t1 (id int NOT NULL PRIMARY KEY, day date);
CREATE TABLE t2 (id int NOT NULL PRIMARY KEY, day date);
INSERT INTO t1 VALUES
(1, '2005-06-01'), (2, '2005-02-01'), (3, '2005-07-01');
INSERT INTO t2 VALUES
(1, '2005-08-01'), (2, '2005-06-15'), (3, '2005-07-15');
SELECT * FROM t1, t2 
WHERE t1.day BETWEEN 
'2005.09.01' - INTERVAL 6 MONTH AND t2.day;
id	day	id	day
1	2005-06-01	1	2005-08-01
3	2005-07-01	1	2005-08-01
1	2005-06-01	2	2005-06-15
1	2005-06-01	3	2005-07-15
3	2005-07-01	3	2005-07-15
SELECT * FROM t1, t2 
WHERE CAST(t1.day AS DATE) BETWEEN 
'2005.09.01' - INTERVAL 6 MONTH AND t2.day;
id	day	id	day
1	2005-06-01	1	2005-08-01
3	2005-07-01	1	2005-08-01
1	2005-06-01	2	2005-06-15
1	2005-06-01	3	2005-07-15
3	2005-07-01	3	2005-07-15
DROP TABLE t1,t2;
set time_zone= @@global.time_zone;
select str_to_date('10:00 PM', '%h:%i %p') + INTERVAL 10 MINUTE;
str_to_date('10:00 PM', '%h:%i %p') + INTERVAL 10 MINUTE
22:10:00
select str_to_date("1997-00-04 22:23:00","%Y-%m-%D") + interval 10 minute;
str_to_date("1997-00-04 22:23:00","%Y-%m-%D") + interval 10 minute
NULL
Warnings:
Warning	1292	Truncated incorrect date value: '1997-00-04 22:23:00'
Warning	1292	Incorrect datetime value: '1997-00-04'
create table t1 (field DATE);
insert into t1 values ('2006-11-06');
select * from t1 where field < '2006-11-06 04:08:36.0';
field
2006-11-06
select * from t1 where field = '2006-11-06 04:08:36.0';
field
select * from t1 where field = '2006-11-06';
field
2006-11-06
select * from t1 where CAST(field as DATETIME) < '2006-11-06 04:08:36.0';
field
2006-11-06
select * from t1 where CAST(field as DATE) < '2006-11-06 04:08:36.0';
field
2006-11-06
drop table t1;
CREATE TABLE t1 (a int, t1 time, t2 time, d date, PRIMARY KEY  (a));
INSERT INTO t1 VALUES (1, '10:00:00', NULL, NULL), 
(2, '11:00:00', '11:15:00', '1972-02-06');
SELECT t1, t2, SEC_TO_TIME( TIME_TO_SEC( t2 ) - TIME_TO_SEC( t1 ) ), QUARTER(d) 
FROM t1;
t1	t2	SEC_TO_TIME( TIME_TO_SEC( t2 ) - TIME_TO_SEC( t1 ) )	QUARTER(d)
10:00:00	NULL	NULL	NULL
11:00:00	11:15:00	00:15:00	1
SELECT t1, t2, SEC_TO_TIME( TIME_TO_SEC( t2 ) - TIME_TO_SEC( t1 ) ), QUARTER(d)
FROM t1 ORDER BY a DESC;
t1	t2	SEC_TO_TIME( TIME_TO_SEC( t2 ) - TIME_TO_SEC( t1 ) )	QUARTER(d)
11:00:00	11:15:00	00:15:00	1
10:00:00	NULL	NULL	NULL
DROP TABLE t1;
SELECT TIME_FORMAT(SEC_TO_TIME(a),"%H:%i:%s") FROM (SELECT 3020399 AS a UNION SELECT 3020398 ) x GROUP BY 1;
TIME_FORMAT(SEC_TO_TIME(a),"%H:%i:%s")
838:59:58
838:59:59
set names latin1;
create table t1 (a varchar(15) character set ascii not null);
insert into t1 values ('070514-000000');
select concat(a,ifnull(min(date_format(now(), '%Y-%m-%d')),' ull')) from t1;
concat(a,ifnull(min(date_format(now(), '%Y-%m-%d')),' ull'))
#
set names swe7;
select concat(a,ifnull(min(date_format(now(), '%Y-%m-%d')),' ull')) from t1;
ERROR HY000: Illegal mix of collations (ascii_general_ci,IMPLICIT) and (swe7_swedish_ci,COERCIBLE) for operation 'concat'
set names latin1;
set lc_time_names=fr_FR;
select concat(a,ifnull(min(date_format(now(), '%Y-%m-%d')),' ull')) from t1;
ERROR HY000: Illegal mix of collations (ascii_general_ci,IMPLICIT) and (latin1_swedish_ci,COERCIBLE) for operation 'concat'
set lc_time_names=en_US;
drop table t1;
select DATE_ADD('20071108181000', INTERVAL 1 DAY);
DATE_ADD('20071108181000', INTERVAL 1 DAY)
2007-11-09 18:10:00
select DATE_ADD(20071108181000,   INTERVAL 1 DAY);
DATE_ADD(20071108181000,   INTERVAL 1 DAY)
2007-11-09 18:10:00
select DATE_ADD('20071108',       INTERVAL 1 DAY);
DATE_ADD('20071108',       INTERVAL 1 DAY)
2007-11-09
select DATE_ADD(20071108,         INTERVAL 1 DAY);
DATE_ADD(20071108,         INTERVAL 1 DAY)
2007-11-09
select LAST_DAY('2007-12-06 08:59:19.05') - INTERVAL 1 SECOND;
LAST_DAY('2007-12-06 08:59:19.05') - INTERVAL 1 SECOND
2007-12-30 23:59:59
select date_add('1000-01-01 00:00:00', interval '1.03:02:01.05' day_microsecond);
date_add('1000-01-01 00:00:00', interval '1.03:02:01.05' day_microsecond)
1000-01-02 03:02:01.050000
select date_add('1000-01-01 00:00:00', interval '1.02' day_microsecond);
date_add('1000-01-01 00:00:00', interval '1.02' day_microsecond)
1000-01-01 00:00:01.020000
#
# Bug #52315 part 2 : utc_date() crashes when system time > year 2037
#
SET TIMESTAMP=-147490000;
SELECT UTC_TIMESTAMP();
SET TIMESTAMP=2147483648;
SELECT UTC_TIMESTAMP();
SET TIMESTAMP=2147483646;
SELECT UTC_TIMESTAMP();
SET TIMESTAMP=2147483647;
SELECT UTC_TIMESTAMP();
SET TIMESTAMP=0;
SELECT UTC_TIMESTAMP();
SET TIMESTAMP=-1;
SELECT UTC_TIMESTAMP();
SET TIMESTAMP=1;
SELECT UTC_TIMESTAMP();
SET TIMESTAMP=0;
End of 5.0 tests
select date_sub("0050-01-01 00:00:01",INTERVAL 2 SECOND);
date_sub("0050-01-01 00:00:01",INTERVAL 2 SECOND)
0049-12-31 23:59:59
select date_sub("0199-01-01 00:00:01",INTERVAL 2 SECOND);
date_sub("0199-01-01 00:00:01",INTERVAL 2 SECOND)
0198-12-31 23:59:59
select date_add("0199-12-31 23:59:59",INTERVAL 2 SECOND);
date_add("0199-12-31 23:59:59",INTERVAL 2 SECOND)
0200-01-01 00:00:01
select date_sub("0200-01-01 00:00:01",INTERVAL 2 SECOND);
date_sub("0200-01-01 00:00:01",INTERVAL 2 SECOND)
0199-12-31 23:59:59
select date_sub("0200-01-01 00:00:01",INTERVAL 1 SECOND);
date_sub("0200-01-01 00:00:01",INTERVAL 1 SECOND)
0200-01-01 00:00:00
select date_sub("0200-01-01 00:00:01",INTERVAL 2 SECOND);
date_sub("0200-01-01 00:00:01",INTERVAL 2 SECOND)
0199-12-31 23:59:59
select date_add("2001-01-01 23:59:59",INTERVAL -2000 YEAR);
date_add("2001-01-01 23:59:59",INTERVAL -2000 YEAR)
0001-01-01 23:59:59
select date_sub("50-01-01 00:00:01",INTERVAL 2 SECOND);
date_sub("50-01-01 00:00:01",INTERVAL 2 SECOND)
2049-12-31 23:59:59
select date_sub("90-01-01 00:00:01",INTERVAL 2 SECOND);
date_sub("90-01-01 00:00:01",INTERVAL 2 SECOND)
1989-12-31 23:59:59
select date_sub("0069-01-01 00:00:01",INTERVAL 2 SECOND);
date_sub("0069-01-01 00:00:01",INTERVAL 2 SECOND)
0068-12-31 23:59:59
select date_sub("0169-01-01 00:00:01",INTERVAL 2 SECOND);
date_sub("0169-01-01 00:00:01",INTERVAL 2 SECOND)
0168-12-31 23:59:59
CREATE TABLE t1(a DOUBLE NOT NULL);
INSERT INTO t1 VALUES (0),(9.216e-096);
# should not crash
SELECT 1 FROM t1 ORDER BY @x:=makedate(a,a);
1
1
1
DROP TABLE t1;
#
# Bug #52160: crash and inconsistent results when grouping
#             by a function and column
#
CREATE TABLE t1(a CHAR(10) NOT NULL);
INSERT INTO t1 VALUES (''),('');
SELECT COUNT(*) FROM t1 GROUP BY TIME_TO_SEC(a);
COUNT(*)
2
Warnings:
Warning	1292	Truncated incorrect time value: ''
Warning	1292	Truncated incorrect time value: ''
Warning	1292	Truncated incorrect time value: ''
DROP TABLE t1;
#
# Bug#11766112  59151:UNINITIALIZED VALUES IN EXTRACT_DATE_TIME WITH STR_TO_DATE(SPACE(..) ...
#
SELECT STR_TO_DATE(SPACE(2),'1');
STR_TO_DATE(SPACE(2),'1')
0000-00-00
#
# Bug#11765216  58154: UNINITIALIZED VARIABLE FORMAT IN STR_TO_DATE FUNCTION
#
SET GLOBAL SQL_MODE='';
DO  STR_TO_DATE((''), FROM_DAYS(@@GLOBAL.SQL_MODE));
SET GLOBAL SQL_MODE=DEFAULT;
#
# Bug#11766087  59125: VALGRIND UNINITIALISED VALUE WARNING IN ULL2DEC, LONGLONG2DECIMAL
#
SELECT FORMAT(YEAR(STR_TO_DATE('',GET_FORMAT(TIME,''))),1);
FORMAT(YEAR(STR_TO_DATE('',GET_FORMAT(TIME,''))),1)
NULL
#
# Bug#11766126  59166: ANOTHER DATETIME VALGRIND UNINITIALIZED WARNING
#
SELECT CAST((MONTH(FROM_UNIXTIME(@@GLOBAL.SQL_MODE))) AS BINARY(1025));
#
# Bug#11766124  59164: VALGRIND: UNINITIALIZED VALUE IN NUMBER_TO_DATETIME
#
SELECT ADDDATE(MONTH(FROM_UNIXTIME(NULL)),INTERVAL 1 HOUR);
ADDDATE(MONTH(FROM_UNIXTIME(NULL)),INTERVAL 1 HOUR)
NULL
#
# Bug#11889186  60503: CRASH IN MAKE_DATE_TIME WITH DATE_FORMAT / STR_TO_DATE COMBINATION
#
SELECT DATE_FORMAT('0000-00-11', '%W');
DATE_FORMAT('0000-00-11', '%W')
NULL
SELECT DATE_FORMAT('0000-00-11', '%a');
DATE_FORMAT('0000-00-11', '%a')
NULL
SELECT DATE_FORMAT('0000-00-11', '%w');
DATE_FORMAT('0000-00-11', '%w')
NULL
#
# Bug#12403504  AFTER FIX FOR #11889186 : ASSERTION FAILED: DELSUM+(INT) Y/4-TEMP > 0
#
SELECT MAKEDATE(11111111,1);
MAKEDATE(11111111,1)
NULL
SELECT WEEK(DATE_ADD(FROM_DAYS(1),INTERVAL 1 MONTH), 1);
WEEK(DATE_ADD(FROM_DAYS(1),INTERVAL 1 MONTH), 1)
NULL
Warnings:
Warning	1292	Incorrect datetime value: '0000-00-00'
#
# Bug#12584302 AFTER FIX FOR #12403504: ASSERTION FAILED: DELSUM+(INT) Y/4-TEMP > 0,
#
DO WEEK((DATE_ADD((CAST(0 AS DATE)), INTERVAL 1 YEAR_MONTH)), 5);
Warnings:
Warning	1292	Incorrect datetime value: '0000-00-00'
#
# BUG#13458237 INCONSISTENT HANDLING OF INVALIDE DATES WITH ZERO DAY
# SIMILAR TO '2009-10-00' 
#
SELECT
DATE('20091000'),
STR_TO_DATE('200910','%Y%m'),
LAST_DAY('2009-10-00'),
LAST_DAY(DATE('2009-10-00')),
LAST_DAY(DATE'2009-10-00'),
LAST_DAY(STR_TO_DATE('200910','%Y%m')),
WEEK('2009-10-00'),
WEEK(DATE('2009-10-00')),
WEEK(DATE'2009-10-00'),
WEEK(STR_TO_DATE('200910','%Y%m')),
WEEKOFYEAR('2009-10-00'),
WEEKOFYEAR(DATE('2009-10-00')),
WEEKOFYEAR(DATE'2009-10-00'),
WEEKOFYEAR(STR_TO_DATE('200910','%Y%m')),
DAYOFYEAR('2009-10-00'),
DAYOFYEAR(DATE('2009-10-00')),
DAYOFYEAR(DATE'2009-10-00'),
DAYOFYEAR(STR_TO_DATE('200910','%Y%m')),
WEEKDAY('2009-10-00'),
WEEKDAY(DATE('2009-10-00')),
WEEKDAY(DATE'2009-10-00'),
WEEKDAY(STR_TO_DATE('200910','%Y%m')),
TO_DAYs('2009-10-00'),
TO_DAYs(DATE('2009-10-00')),
TO_DAYs(DATE'2009-10-00'),
TO_DAYs(STR_TO_DATE('200910','%Y%m'));
DATE('20091000')	2009-10-00
STR_TO_DATE('200910','%Y%m')	2009-10-00
LAST_DAY('2009-10-00')	2009-10-31
LAST_DAY(DATE('2009-10-00'))	2009-10-31
LAST_DAY(DATE'2009-10-00')	2009-10-31
LAST_DAY(STR_TO_DATE('200910','%Y%m'))	2009-10-31
WEEK('2009-10-00')	NULL
WEEK(DATE('2009-10-00'))	NULL
WEEK(DATE'2009-10-00')	NULL
WEEK(STR_TO_DATE('200910','%Y%m'))	NULL
WEEKOFYEAR('2009-10-00')	NULL
WEEKOFYEAR(DATE('2009-10-00'))	NULL
WEEKOFYEAR(DATE'2009-10-00')	NULL
WEEKOFYEAR(STR_TO_DATE('200910','%Y%m'))	NULL
DAYOFYEAR('2009-10-00')	NULL
DAYOFYEAR(DATE('2009-10-00'))	NULL
DAYOFYEAR(DATE'2009-10-00')	NULL
DAYOFYEAR(STR_TO_DATE('200910','%Y%m'))	NULL
WEEKDAY('2009-10-00')	NULL
WEEKDAY(DATE('2009-10-00'))	NULL
WEEKDAY(DATE'2009-10-00')	NULL
WEEKDAY(STR_TO_DATE('200910','%Y%m'))	NULL
TO_DAYs('2009-10-00')	NULL
TO_DAYs(DATE('2009-10-00'))	NULL
TO_DAYs(DATE'2009-10-00')	NULL
TO_DAYs(STR_TO_DATE('200910','%Y%m'))	NULL
Warnings:
Level	Warning
Code	1292
Message	Incorrect datetime value: '2009-10-00'
Level	Warning
Code	1292
Message	Incorrect datetime value: '2009-10-00'
Level	Warning
Code	1292
Message	Incorrect datetime value: '2009-10-00'
Level	Warning
Code	1411
Message	Incorrect datetime value: '200910' for function str_to_date
Level	Warning
Code	1292
Message	Incorrect datetime value: '2009-10-00'
Level	Warning
Code	1292
Message	Incorrect datetime value: '2009-10-00'
Level	Warning
Code	1292
Message	Incorrect datetime value: '2009-10-00'
Level	Warning
Code	1411
Message	Incorrect datetime value: '200910' for function str_to_date
Level	Warning
Code	1292
Message	Incorrect datetime value: '2009-10-00'
Level	Warning
Code	1292
Message	Incorrect datetime value: '2009-10-00'
Level	Warning
Code	1292
Message	Incorrect datetime value: '2009-10-00'
Level	Warning
Code	1411
Message	Incorrect datetime value: '200910' for function str_to_date
Level	Warning
Code	1292
Message	Incorrect datetime value: '2009-10-00'
Level	Warning
Code	1292
Message	Incorrect datetime value: '2009-10-00'
Level	Warning
Code	1292
Message	Incorrect datetime value: '2009-10-00'
Level	Warning
Code	1411
Message	Incorrect datetime value: '200910' for function str_to_date
Level	Warning
Code	1292
Message	Incorrect datetime value: '2009-10-00'
Level	Warning
Code	1292
Message	Incorrect datetime value: '2009-10-00'
Level	Warning
Code	1292
Message	Incorrect datetime value: '2009-10-00'
Level	Warning
Code	1411
Message	Incorrect datetime value: '200910' for function str_to_date
SELECT
DATE('00000100'),
STR_TO_DATE('000001','%Y%m'),
LAST_DAY('0000-01-00'),
LAST_DAY(DATE('0000-01-00')),
LAST_DAY(DATE'0000-01-00'),
LAST_DAY(STR_TO_DATE('000001','%Y%m')),
WEEK('0000-01-00'),
WEEK(DATE('0000-01-00')),
WEEK(DATE'0000-01-00'),
WEEK(STR_TO_DATE('000001','%Y%m')),
WEEKOFYEAR('0000-01-00'),
WEEKOFYEAR(DATE('0000-01-00')),
WEEKOFYEAR(DATE'0000-01-00'),
WEEKOFYEAR(STR_TO_DATE('000001','%Y%m')),
DAYOFYEAR('0000-01-00'),
DAYOFYEAR(DATE('0000-01-00')),
DAYOFYEAR(DATE'0000-01-00'),
DAYOFYEAR(STR_TO_DATE('000001','%Y%m')),
WEEKDAY('0000-01-00'),
WEEKDAY(DATE('0000-01-00')),
WEEKDAY(DATE'0000-01-00'),
WEEKDAY(STR_TO_DATE('000001','%Y%m')),
TO_DAYs('0000-01-00'),
TO_DAYs(DATE('0000-01-00')),
TO_DAYs(DATE'0000-01-00'),
TO_DAYs(STR_TO_DATE('000001','%Y%m'));
DATE('00000100')	0000-01-00
STR_TO_DATE('000001','%Y%m')	0000-01-00
LAST_DAY('0000-01-00')	0000-01-31
LAST_DAY(DATE('0000-01-00'))	0000-01-31
LAST_DAY(DATE'0000-01-00')	0000-01-31
LAST_DAY(STR_TO_DATE('000001','%Y%m'))	0000-01-31
WEEK('0000-01-00')	NULL
WEEK(DATE('0000-01-00'))	NULL
WEEK(DATE'0000-01-00')	NULL
WEEK(STR_TO_DATE('000001','%Y%m'))	NULL
WEEKOFYEAR('0000-01-00')	NULL
WEEKOFYEAR(DATE('0000-01-00'))	NULL
WEEKOFYEAR(DATE'0000-01-00')	NULL
WEEKOFYEAR(STR_TO_DATE('000001','%Y%m'))	NULL
DAYOFYEAR('0000-01-00')	NULL
DAYOFYEAR(DATE('0000-01-00'))	NULL
DAYOFYEAR(DATE'0000-01-00')	NULL
DAYOFYEAR(STR_TO_DATE('000001','%Y%m'))	NULL
WEEKDAY('0000-01-00')	NULL
WEEKDAY(DATE('0000-01-00'))	NULL
WEEKDAY(DATE'0000-01-00')	NULL
WEEKDAY(STR_TO_DATE('000001','%Y%m'))	NULL
TO_DAYs('0000-01-00')	NULL
TO_DAYs(DATE('0000-01-00'))	NULL
TO_DAYs(DATE'0000-01-00')	NULL
TO_DAYs(STR_TO_DATE('000001','%Y%m'))	NULL
Warnings:
Level	Warning
Code	1292
Message	Incorrect datetime value: '0000-01-00'
Level	Warning
Code	1292
Message	Incorrect datetime value: '0000-01-00'
Level	Warning
Code	1292
Message	Incorrect datetime value: '0000-01-00'
Level	Warning
Code	1411
Message	Incorrect datetime value: '000001' for function str_to_date
Level	Warning
Code	1292
Message	Incorrect datetime value: '0000-01-00'
Level	Warning
Code	1292
Message	Incorrect datetime value: '0000-01-00'
Level	Warning
Code	1292
Message	Incorrect datetime value: '0000-01-00'
Level	Warning
Code	1411
Message	Incorrect datetime value: '000001' for function str_to_date
Level	Warning
Code	1292
Message	Incorrect datetime value: '0000-01-00'
Level	Warning
Code	1292
Message	Incorrect datetime value: '0000-01-00'
Level	Warning
Code	1292
Message	Incorrect datetime value: '0000-01-00'
Level	Warning
Code	1411
Message	Incorrect datetime value: '000001' for function str_to_date
Level	Warning
Code	1292
Message	Incorrect datetime value: '0000-01-00'
Level	Warning
Code	1292
Message	Incorrect datetime value: '0000-01-00'
Level	Warning
Code	1292
Message	Incorrect datetime value: '0000-01-00'
Level	Warning
Code	1411
Message	Incorrect datetime value: '000001' for function str_to_date
Level	Warning
Code	1292
Message	Incorrect datetime value: '0000-01-00'
Level	Warning
Code	1292
Message	Incorrect datetime value: '0000-01-00'
Level	Warning
Code	1292
Message	Incorrect datetime value: '0000-01-00'
Level	Warning
Code	1411
Message	Incorrect datetime value: '000001' for function str_to_date
End of 5.1 tests
#
# Bug#57039: constant subtime expression returns incorrect result.
#
CREATE TABLE t1 (`date_date` datetime NOT NULL);
INSERT INTO t1 VALUES ('2008-01-03 00:00:00'), ('2008-01-03 00:00:00');
SELECT * FROM t1 WHERE date_date >= subtime(now(), "00:30:00");
date_date
SELECT * FROM t1 WHERE date_date <= addtime(date_add("2000-1-1", INTERVAL "1:1:1" HOUR_SECOND), "00:20:00");
date_date
DROP TABLE t1;
#
# Bug#57512 str_to_date crash...
#
SELECT WEEK(STR_TO_DATE(NULL,0));
WEEK(STR_TO_DATE(NULL,0))
NULL
SELECT SUBDATE(STR_TO_DATE(NULL,0), INTERVAL 1 HOUR);
SUBDATE(STR_TO_DATE(NULL,0), INTERVAL 1 HOUR)
NULL
#
# BUG#59895 - setting storage engine to null segfaults mysqld
#
SELECT MONTHNAME(0), MONTHNAME(0) IS NULL, MONTHNAME(0) + 1;
MONTHNAME(0)	MONTHNAME(0) IS NULL	MONTHNAME(0) + 1
NULL	1	NULL
SET storage_engine=NULL;
ERROR 42000: Variable 'storage_engine' can't be set to the value of 'NULL'
#
# BUG#13354387 - CRASH IN IN MY_DECIMAL::OPERATOR FOR VIEW AND FUNCTION UNIX_TIMESTAMP 
# Part1 (5.5)
SET time_zone='+03:00';
CREATE TABLE t1 (a DATETIME NOT NULL);
INSERT INTO t1 VALUES ('2009-09-20 07:32:39.06');
INSERT INTO t1 VALUES ('0000-00-00 00:00:00.00');
CREATE VIEW v1 AS SELECT * FROM t1;
SELECT CAST(UNIX_TIMESTAMP(a) AS DECIMAL(25,3)) AS c1 FROM v1 ORDER BY 1;
c1
NULL
1253421159.000
DROP VIEW v1;
DROP TABLE t1;
SET time_zone=DEFAULT;
#
# Bug #59686 crash in String::copy() with time data type
#
SELECT min(timestampadd(month, 1>'', from_days('%Z')));
min(timestampadd(month, 1>'', from_days('%Z')))
NULL
Warnings:
Warning	1292	Truncated incorrect INTEGER value: '%Z'
Warning	1292	Incorrect datetime value: '0000-00-00'
create table t1(a time);
insert into t1 values ('00:00:00'),('00:01:00');
select 1 from t1 where 1 < some (select cast(a as datetime) from t1);
1
drop table t1;
select time('10:10:10') > 10;
time('10:10:10') > 10
1
select time('10:10:10') > 1010;
time('10:10:10') > 1010
1
select time('10:10:09') > 101010;
time('10:10:09') > 101010
0
select time('10:10:10') > 101010;
time('10:10:10') > 101010
0
select time('10:10:11') > 101010;
time('10:10:11') > 101010
1
select time(' 1 02:03:04') + interval 9 microsecond;
time(' 1 02:03:04') + interval 9 microsecond
26:03:04.000009
select time(' 1 02:03:04') - interval 9 microsecond;
time(' 1 02:03:04') - interval 9 microsecond
26:03:03.999991
select time('-1 02:03:04') + interval 9 microsecond;
time('-1 02:03:04') + interval 9 microsecond
-26:03:03.999991
select time('-1 02:03:04') - interval 9 microsecond;
time('-1 02:03:04') - interval 9 microsecond
-26:03:04.000009
select time(' 1 02:03:04') + interval '4:4:4' hour_second;
time(' 1 02:03:04') + interval '4:4:4' hour_second
30:07:08
select time(' 1 02:03:04') - interval '4:4:4' hour_second;
time(' 1 02:03:04') - interval '4:4:4' hour_second
21:59:00
select time('-1 02:03:04') + interval '4:4:4' hour_second;
time('-1 02:03:04') + interval '4:4:4' hour_second
-21:59:00
select time('-1 02:03:04') - interval '4:4:4' hour_second;
time('-1 02:03:04') - interval '4:4:4' hour_second
-30:07:08
select time(' 1 02:03:04') + interval 2 day;
time(' 1 02:03:04') + interval 2 day
74:03:04
select time(' 1 02:03:04') - interval 2 day;
time(' 1 02:03:04') - interval 2 day
-21:56:56
select time('-1 02:03:04') + interval 2 day;
time('-1 02:03:04') + interval 2 day
21:56:56
select time('-1 02:03:04') - interval 2 day;
time('-1 02:03:04') - interval 2 day
-74:03:04
select time('10 02:03:04') + interval 30 day;
time('10 02:03:04') + interval 30 day
NULL
Warnings:
Warning	1441	Datetime function: time field overflow
select time('10 02:03:04') + interval 1 year;
time('10 02:03:04') + interval 1 year
NULL
Warnings:
Warning	1441	Datetime function: time field overflow
select cast('131415.123e0' as time);
cast('131415.123e0' as time)
NULL
Warnings:
Warning	1292	Truncated incorrect time value: '131415.123e0'
select cast('2010-01-02 03:04:05' as datetime) between null and '2010-01-02 03:04:04';
cast('2010-01-02 03:04:05' as datetime) between null and '2010-01-02 03:04:04'
0
select least(time('1:2:3'), '01:02:04', null) div 1;
least(time('1:2:3'), '01:02:04', null) div 1
NULL
select truncate(least(time('1:2:3'), '01:02:04', null), 6);
truncate(least(time('1:2:3'), '01:02:04', null), 6)
NULL
select cast(least(time('1:2:3'), '01:02:04', null) as decimal(3,1));
cast(least(time('1:2:3'), '01:02:04', null) as decimal(3,1))
NULL
select unix_timestamp(null);
unix_timestamp(null)
NULL
select truncate(date('2010-40-10'), 6);
truncate(date('2010-40-10'), 6)
NULL
Warnings:
Warning	1292	Incorrect datetime value: '2010-40-10'
select extract(month from '2010-40-50');
extract(month from '2010-40-50')
NULL
Warnings:
Warning	1292	Incorrect datetime value: '2010-40-50'
select subtime('0000-00-10 10:10:10', '30 10:00:00');
subtime('0000-00-10 10:10:10', '30 10:00:00')
NULL
select cast(str_to_date(NULL, '%H:%i:%s') as time);
cast(str_to_date(NULL, '%H:%i:%s') as time)
NULL
create table t1 (f1 datetime, key (f1));
insert into t1 values ('2000-09-12 00:00:00'), ('2007-04-25 05:08:49');
select * from t1 where f1 > time('-23:00:06');
f1
2000-09-12 00:00:00
2007-04-25 05:08:49
drop table t1;
select maketime(20,61,10)+0;
maketime(20,61,10)+0
NULL
create table t1 (f2 int not null) ;
insert into t1 values (0),(0);
select last_day(f2) from t1;
last_day(f2)
NULL
NULL
Warnings:
Warning	1292	Incorrect datetime value: '0'
Warning	1292	Incorrect datetime value: '0'
select last_day(f2) from t1 where last_day(f2) is null;
last_day(f2)
NULL
NULL
Warnings:
Warning	1292	Incorrect datetime value: '0'
Warning	1292	Incorrect datetime value: '0'
Warning	1292	Incorrect datetime value: '0'
Warning	1292	Incorrect datetime value: '0'
select * from t1 order by last_day (f2);
f2
0
0
Warnings:
Warning	1292	Incorrect datetime value: '0'
Warning	1292	Incorrect datetime value: '0'
drop table t1;
select convert_tz(timediff('0000-00-00 00:00:00', cast('2008-03-26 07:09:06' as datetime)), 'UTC', 'Europe/Moscow');
convert_tz(timediff('0000-00-00 00:00:00', cast('2008-03-26 07:09:06' as datetime)), 'UTC', 'Europe/Moscow')
NULL
create table t1 (f1 integer, f2 date);
insert into t1 values (1,'2011-05-05'),(2,'2011-05-05'),(3,'2011-05-05'),(4,'2011-05-05'),(5,'2011-05-05'),(6, '2011-05-06');
select * from t1 where 1 and concat(f2)=MAKEDATE(2011, 125);
f1	f2
1	2011-05-05
2	2011-05-05
3	2011-05-05
4	2011-05-05
5	2011-05-05
drop table t1;
create table t1 (f1 timestamp);
insert into t1 values ('0000-00-00 00:00:00');
select least(1, f1) from t1;
least(1, f1)
0000-00-00 00:00:00
Warnings:
Warning	1292	Incorrect datetime value: '1'
drop table t1;
select now() > coalesce(time('21:43:24'), date('2010-05-03'));
now() > coalesce(time('21:43:24'), date('2010-05-03'))
1
create table t1 (f1 timestamp);
select * from t1 where f1 > f1 and f1 <=> timestampadd(hour, 9 , '2010-01-01 16:55:35');
f1
drop table t1;
create table t1 (f1 date);
insert into t1 values ('0000-00-00');
select timestampadd(week, 1, f1) from t1;
timestampadd(week, 1, f1)
NULL
Warnings:
Warning	1292	Incorrect datetime value: '0000-00-00'
select timestampadd(week, 1, date("0000-00-00"));
timestampadd(week, 1, date("0000-00-00"))
NULL
Warnings:
Warning	1292	Incorrect datetime value: '0000-00-00'
drop table t1;
create table t1 (f2 time not null, f3 datetime, f4 int not null, f5 timestamp);
insert ignore t1 values ('04:38:11','0000-00-00 00:00:00',0,'0000-00-00 00:00:00');
select least(greatest(f3, f2, f4), f5) from t1;
least(greatest(f3, f2, f4), f5)
0000-00-00 00:00:00
Warnings:
Warning	1292	Incorrect datetime value: '0'
drop table t1;
select day(coalesce(null));
day(coalesce(null))
NULL
select timestamp(greatest('2002-08-20', '0000-00-00 00:00:00'));
timestamp(greatest('2002-08-20', '0000-00-00 00:00:00'))
2002-08-20 00:00:00
create table t1 (f1 datetime);
insert into t1 values ('0000-00-00 00:00:00');
select cast(f1 AS time) from t1;
cast(f1 AS time)
00:00:00
drop table t1;
select greatest(cast("0-0-0" as date), cast("10:20:05" as time));
greatest(cast("0-0-0" as date), cast("10:20:05" as time))
0000-00-00
select greatest(cast("0-0-0" as date), cast("10:20:05" as time)) = '0000-00-00';
greatest(cast("0-0-0" as date), cast("10:20:05" as time)) = '0000-00-00'
1
select cast(greatest(cast("0-0-0" as date), cast("10:20:05" as time)) as datetime(6));
cast(greatest(cast("0-0-0" as date), cast("10:20:05" as time)) as datetime(6))
0000-00-00 00:00:00.000000
select microsecond('12:00:00.123456'), microsecond('2009-12-31 23:59:59.000010');
microsecond('12:00:00.123456')	microsecond('2009-12-31 23:59:59.000010')
123456	10
select now(258);
ERROR 42000: Too big precision 258 specified for 'now'. Maximum is 6.
SELECT 1 FROM DUAL WHERE YEAR(TIMEDIFF(NULL, '12:12:12'));
1
SELECT 1 FROM DUAL WHERE MONTH(TIMEDIFF(NULL, '12:12:12'));
1
SELECT 1 FROM DUAL WHERE DAYOFMONTH(TIMEDIFF(NULL, '12:12:12'));
1
SELECT 1 FROM DUAL WHERE HOUR(TIMEDIFF(NULL, '12:12:12'));
1
SELECT 1 FROM DUAL WHERE MINUTE(TIMEDIFF(NULL, '12:12:12'));
1
SELECT 1 FROM DUAL WHERE SECOND(TIMEDIFF(NULL, '12:12:12'));
1
#
# MDEV-4635 Crash in UNIX_TIMESTAMP(STR_TO_DATE('2020','%Y'))
#
SET TIME_ZONE='+02:00';
SELECT UNIX_TIMESTAMP(STR_TO_DATE('2020','%Y'));
UNIX_TIMESTAMP(STR_TO_DATE('2020','%Y'))
NULL
Warnings:
Warning	1411	Incorrect datetime value: '2020' for function str_to_date
SET TIME_ZONE=DEFAULT;
#
#  MDEV-4863 COALESCE(time_or_datetime) returns wrong results in numeric context
#
CREATE TABLE t1 (a TIMESTAMP(3));
INSERT INTO t1 VALUES ('2001-01-01 10:20:30.999');
SELECT CAST(COALESCE(a,a) AS SIGNED) AS c1, CAST(COALESCE(a,a) AS DECIMAL(25,3)) AS c2, ROUND(COALESCE(a,a)) AS c2  FROM t1;
c1	c2	c2
20010101102030	20010101102030.999	20010101102031
DROP TABLE t1;
CREATE TABLE t1 (a TIME(3));
INSERT INTO t1 VALUES ('10:20:30.999');
SELECT CAST(COALESCE(a,a) AS SIGNED) AS c1, CAST(COALESCE(a,a) AS DECIMAL(25,3)) AS c2, ROUND(COALESCE(a,a)) AS c2  FROM t1;
c1	c2	c2
102030	102030.999	102031
DROP TABLE t1;
SELECT
CAST(COALESCE(DATE('2001-01-01'),TIMESTAMP('2001-01-02 10:20:30')) AS SIGNED) AS c1,
CAST(COALESCE(DATE('2001-01-01'),TIMESTAMP('2001-01-02 10:20:30')) AS DECIMAL(25,4)) AS c2,
COALESCE(DATE('2001-01-01'),TIMESTAMP('2001-01-02 10:20:30'))+0e0 AS c3,
CONCAT(COALESCE(DATE('2001-01-01'),TIMESTAMP('2001-01-02 10:20:30'))) AS c4,
TIME(COALESCE(DATE('2001-01-01'),TIMESTAMP('2001-01-02 10:20:30'))) AS c5,
DATE(COALESCE(DATE('2001-01-01'),TIMESTAMP('2001-01-02 10:20:30'))) AS c6,
TIMESTAMP(COALESCE(DATE('2001-01-01'),TIMESTAMP('2001-01-02 10:20:30'))) AS c7;
c1	c2	c3	c4	c5	c6	c7
20010101000000	20010101000000.0000	20010101000000	2001-01-01 00:00:00	00:00:00	2001-01-01	2001-01-01 00:00:00
SELECT
CAST(COALESCE(TIMESTAMP('2001-01-02 10:20:30'),DATE('2001-01-01')) AS SIGNED) AS c1,
CAST(COALESCE(TIMESTAMP('2001-01-02 10:20:30'),DATE('2001-01-01')) AS DECIMAL(25,4)) AS c2,
COALESCE(TIMESTAMP('2001-01-02 10:20:30'),DATE('2001-01-01'))+0e0 AS c3,
CONCAT(COALESCE(TIMESTAMP('2001-01-02 10:20:30'),DATE('2001-01-01'))) AS c4,
TIME(COALESCE(TIMESTAMP('2001-01-02 10:20:30'),DATE('2001-01-01'))) AS c5,
DATE(COALESCE(TIMESTAMP('2001-01-02 10:20:30'),DATE('2001-01-01'))) AS c6,
TIMESTAMP(COALESCE(TIMESTAMP('2001-01-02 10:20:30'),DATE('2001-01-01'))) AS c7;
c1	c2	c3	c4	c5	c6	c7
20010102102030	20010102102030.0000	20010102102030	2001-01-02 10:20:30	10:20:30	2001-01-02	2001-01-02 10:20:30
SELECT
CAST(IFNULL(DATE('2001-01-01'),TIMESTAMP('2001-01-02 10:20:30')) AS SIGNED) AS c1,
CAST(IFNULL(DATE('2001-01-01'),TIMESTAMP('2001-01-02 10:20:30')) AS DECIMAL(25,4)) AS c2,
IFNULL(DATE('2001-01-01'),TIMESTAMP('2001-01-02 10:20:30'))+0e0 AS c3,
CONCAT(IFNULL(DATE('2001-01-01'),TIMESTAMP('2001-01-02 10:20:30'))) AS c4,
TIME(IFNULL(DATE('2001-01-01'),TIMESTAMP('2001-01-02 10:20:30'))) AS c5,
DATE(IFNULL(DATE('2001-01-01'),TIMESTAMP('2001-01-02 10:20:30'))) AS c6,
TIMESTAMP(IFNULL(DATE('2001-01-01'),TIMESTAMP('2001-01-02 10:20:30'))) AS c7;
c1	c2	c3	c4	c5	c6	c7
20010101000000	20010101000000.0000	20010101000000	2001-01-01 00:00:00	00:00:00	2001-01-01	2001-01-01 00:00:00
SELECT
CAST(IFNULL(TIMESTAMP('2001-01-02 10:20:30'),DATE('2001-01-01')) AS SIGNED) AS c1,
CAST(IFNULL(TIMESTAMP('2001-01-02 10:20:30'),DATE('2001-01-01')) AS DECIMAL(25,4)) AS c2,
IFNULL(TIMESTAMP('2001-01-02 10:20:30'),DATE('2001-01-01'))+0e0 AS c3,
CONCAT(IFNULL(TIMESTAMP('2001-01-02 10:20:30'),DATE('2001-01-01'))) AS c4,
TIME(IFNULL(TIMESTAMP('2001-01-02 10:20:30'),DATE('2001-01-01'))) AS c5,
DATE(IFNULL(TIMESTAMP('2001-01-02 10:20:30'),DATE('2001-01-01'))) AS c6,
TIMESTAMP(IFNULL(TIMESTAMP('2001-01-02 10:20:30'),DATE('2001-01-01'))) AS c7;
c1	c2	c3	c4	c5	c6	c7
20010102102030	20010102102030.0000	20010102102030	2001-01-02 10:20:30	10:20:30	2001-01-02	2001-01-02 10:20:30
SELECT
CAST(IF(1,DATE('2001-01-01'),TIMESTAMP('2001-01-02 10:20:30')) AS SIGNED) AS c1,
CAST(IF(1,DATE('2001-01-01'),TIMESTAMP('2001-01-02 10:20:30')) AS DECIMAL(25,4)) AS c2,
IF(1,DATE('2001-01-01'),TIMESTAMP('2001-01-02 10:20:30'))+0e0 AS c3,
CONCAT(IF(1,DATE('2001-01-01'),TIMESTAMP('2001-01-02 10:20:30'))) AS c4,
TIME(IF(1,DATE('2001-01-01'),TIMESTAMP('2001-01-02 10:20:30'))) AS c5,
DATE(IF(1,DATE('2001-01-01'),TIMESTAMP('2001-01-02 10:20:30'))) AS c6,
TIMESTAMP(IF(1,DATE('2001-01-01'),TIMESTAMP('2001-01-02 10:20:30'))) AS c7;
c1	c2	c3	c4	c5	c6	c7
20010101000000	20010101000000.0000	20010101000000	2001-01-01 00:00:00	00:00:00	2001-01-01	2001-01-01 00:00:00
SELECT
CAST(IF(0,DATE('2001-01-01'),TIMESTAMP('2001-01-02 10:20:30')) AS SIGNED) AS c1,
CAST(IF(0,DATE('2001-01-01'),TIMESTAMP('2001-01-02 10:20:30')) AS DECIMAL(25,4)) AS c2,
IF(0,DATE('2001-01-01'),TIMESTAMP('2001-01-02 10:20:30'))+0e0 AS c3,
CONCAT(IF(0,DATE('2001-01-01'),TIMESTAMP('2001-01-02 10:20:30'))) AS c4,
TIME(IF(0,DATE('2001-01-01'),TIMESTAMP('2001-01-02 10:20:30'))) AS c5,
DATE(IF(0,DATE('2001-01-01'),TIMESTAMP('2001-01-02 10:20:30'))) AS c6,
TIMESTAMP(IF(0,DATE('2001-01-01'),TIMESTAMP('2001-01-02 10:20:30'))) AS c7;
c1	c2	c3	c4	c5	c6	c7
20010102102030	20010102102030.0000	20010102102030	2001-01-02 10:20:30	10:20:30	2001-01-02	2001-01-02 10:20:30
SELECT
CAST(CASE WHEN 1 THEN DATE('2001-01-01') ELSE TIMESTAMP('2001-01-02 10:20:30') END AS SIGNED) AS c1,
CAST(CASE WHEN 1 THEN DATE('2001-01-01') ELSE TIMESTAMP('2001-01-02 10:20:30') END AS DECIMAL(25,4)) AS c2,
CASE WHEN 1 THEN DATE('2001-01-01') ELSE TIMESTAMP('2001-01-02 10:20:30') END+0e0 AS c3,
CONCAT(CASE WHEN 1 THEN DATE('2001-01-01') ELSE TIMESTAMP('2001-01-02 10:20:30') END) AS c4,
TIME(CASE WHEN 1 THEN DATE('2001-01-01') ELSE TIMESTAMP('2001-01-02 10:20:30') END) AS c5,
DATE(CASE WHEN 1 THEN DATE('2001-01-01') ELSE TIMESTAMP('2001-01-02 10:20:30') END) AS c6,
TIMESTAMP(CASE WHEN 1 THEN DATE('2001-01-01') ELSE TIMESTAMP('2001-01-02 10:20:30') END) AS c7;
c1	c2	c3	c4	c5	c6	c7
20010101000000	20010101000000.0000	20010101000000	2001-01-01 00:00:00	00:00:00	2001-01-01	2001-01-01 00:00:00
SELECT
CAST(CASE WHEN 0 THEN DATE('2001-01-01') ELSE TIMESTAMP('2001-01-02 10:20:30') END AS SIGNED) AS c1,
CAST(CASE WHEN 0 THEN DATE('2001-01-01') ELSE TIMESTAMP('2001-01-02 10:20:30') END AS DECIMAL(25,4)) AS c2,
CASE WHEN 0 THEN DATE('2001-01-01') ELSE TIMESTAMP('2001-01-02 10:20:30') END+0e0 AS c3,
CONCAT(CASE WHEN 0 THEN DATE('2001-01-01') ELSE TIMESTAMP('2001-01-02 10:20:30') END) AS c4,
TIME(CASE WHEN 0 THEN DATE('2001-01-01') ELSE TIMESTAMP('2001-01-02 10:20:30') END) AS c5,
DATE(CASE WHEN 0 THEN DATE('2001-01-01') ELSE TIMESTAMP('2001-01-02 10:20:30') END) AS c6,
TIMESTAMP(CASE WHEN 0 THEN DATE('2001-01-01') ELSE TIMESTAMP('2001-01-02 10:20:30') END) AS c7;
c1	c2	c3	c4	c5	c6	c7
20010102102030	20010102102030.0000	20010102102030	2001-01-02 10:20:30	10:20:30	2001-01-02	2001-01-02 10:20:30
CREATE TABLE t1 AS SELECT
CONCAT(COALESCE(TIME(101010),TIME(101010))) AS c1,
CONCAT(IF(0,TIME(101010),TIME(101010))) AS c2,
CONCAT(IFNULL(TIME(101010),TIME(101010))) AS c3,
CONCAT(CASE WHEN 1 THEN TIME(101010) ELSE TIME(101010) END) AS c4;
SHOW CREATE TABLE t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `c1` varchar(10) DEFAULT NULL,
  `c2` varchar(10) DEFAULT NULL,
  `c3` varchar(10) DEFAULT NULL,
  `c4` varchar(10) DEFAULT NULL
) ENGINE=MyISAM DEFAULT CHARSET=latin1
DROP TABLE t1;
#
# MDEV-4870 Wrong values of CASE, COALESCE, IFNULL on a combination of different temporal types
#
CREATE TABLE t1 (dt2 DATETIME(2), t3 TIME(3), d DATE);
INSERT INTO t1 VALUES ('2001-01-01 00:00:00.12', '00:00:00.567', '2002-01-01');
SELECT CASE WHEN 0 THEN dt2 ELSE t3 END FROM t1;
CASE WHEN 0 THEN dt2 ELSE t3 END
0000-00-00 00:00:00.567
CREATE TABLE t2 AS SELECT CASE WHEN 0 THEN dt2 ELSE t3 END FROM t1;
SELECT * FROM t2;
CASE WHEN 0 THEN dt2 ELSE t3 END
0000-00-00 00:00:00.567
SHOW COLUMNS FROM t2;
Field	Type	Null	Key	Default	Extra
CASE WHEN 0 THEN dt2 ELSE t3 END	datetime(3)	YES		NULL	
DROP TABLE t2;
SELECT CASE WHEN 1 THEN dt2 ELSE t3 END FROM t1;
CASE WHEN 1 THEN dt2 ELSE t3 END
2001-01-01 00:00:00.120
SELECT CONCAT(CASE WHEN 1 THEN dt2 ELSE t3 END) FROM t1;
CONCAT(CASE WHEN 1 THEN dt2 ELSE t3 END)
2001-01-01 00:00:00.120
SELECT CONCAT(CASE WHEN 0 THEN t3 ELSE dt2 END) FROM t1;
CONCAT(CASE WHEN 0 THEN t3 ELSE dt2 END)
2001-01-01 00:00:00.120
SELECT CONCAT(CASE WHEN 1 THEN d ELSE t3 END) FROM t1;
CONCAT(CASE WHEN 1 THEN d ELSE t3 END)
2002-01-01 00:00:00.000
SELECT CASE WHEN 1 THEN t3 ELSE d END FROM t1;
CASE WHEN 1 THEN t3 ELSE d END
0000-00-00 00:00:00.567
SELECT COALESCE(d, t3) FROM t1;
COALESCE(d, t3)
2002-01-01 00:00:00.000
SELECT CONCAT(COALESCE(d, t3)) FROM t1;
CONCAT(COALESCE(d, t3))
2002-01-01 00:00:00.000
SELECT COALESCE(dt2, t3) FROM t1;
COALESCE(dt2, t3)
2001-01-01 00:00:00.120
SELECT CONCAT(COALESCE(dt2, t3)) FROM t1;
CONCAT(COALESCE(dt2, t3))
2001-01-01 00:00:00.120
SELECT IFNULL(dt2, t3), CONCAT(IFNULL(dt2, t3)) FROM t1;
IFNULL(dt2, t3)	CONCAT(IFNULL(dt2, t3))
2001-01-01 00:00:00.120	2001-01-01 00:00:00.120
SELECT IFNULL(d, t3), CONCAT(IFNULL(d, t3)) FROM t1;
IFNULL(d, t3)	CONCAT(IFNULL(d, t3))
2002-01-01 00:00:00.000	2002-01-01 00:00:00.000
DROP TABLE t1;
#
# MDEV-4724 Some temporal functions do not preserve microseconds
#
SELECT MAKETIME(10,10,10.231);
MAKETIME(10,10,10.231)
10:10:10.231
SELECT MAKETIME(0, 0, 59.9);
MAKETIME(0, 0, 59.9)
00:00:59.9
CREATE TABLE t1 AS SELECT
MAKETIME(10,00,00),
MAKETIME(10,00,00.1),
MAKETIME(10,00,00.12),
MAKETIME(10,00,00.123),
MAKETIME(10,00,00.1234),
MAKETIME(10,00,00.12345),
MAKETIME(10,00,00.123456);
SHOW COLUMNS FROM t1;
Field	Type	Null	Key	Default	Extra
MAKETIME(10,00,00)	time	YES		NULL	
MAKETIME(10,00,00.1)	time(1)	YES		NULL	
MAKETIME(10,00,00.12)	time(2)	YES		NULL	
MAKETIME(10,00,00.123)	time(3)	YES		NULL	
MAKETIME(10,00,00.1234)	time(4)	YES		NULL	
MAKETIME(10,00,00.12345)	time(5)	YES		NULL	
MAKETIME(10,00,00.123456)	time(6)	YES		NULL	
DROP TABLE t1;
CREATE TABLE t1 AS SELECT
TIME('10:00:00'),
TIME('10:00:00.1'),
TIME('10:00:00.12'),
TIME('10:00:00.123'),
TIME('10:00:00.1234'),
TIME('10:00:00.12345'),
TIME('10:00:00.12346');
SHOW COLUMNS FROM t1;
Field	Type	Null	Key	Default	Extra
TIME('10:00:00')	time	YES		NULL	
TIME('10:00:00.1')	time(1)	YES		NULL	
TIME('10:00:00.12')	time(2)	YES		NULL	
TIME('10:00:00.123')	time(3)	YES		NULL	
TIME('10:00:00.1234')	time(4)	YES		NULL	
TIME('10:00:00.12345')	time(5)	YES		NULL	
TIME('10:00:00.12346')	time(5)	YES		NULL	
DROP TABLE t1;
SET TIME_ZONE='+00:00';
SET TIMESTAMP=UNIX_TIMESTAMP('2012-10-16 22:46:17');
SELECT NOW(), UNIX_TIMESTAMP(), UNIX_TIMESTAMP(NOW()),UNIX_TIMESTAMP('2012-10-16 22:46:17');
NOW()	UNIX_TIMESTAMP()	UNIX_TIMESTAMP(NOW())	UNIX_TIMESTAMP('2012-10-16 22:46:17')
2012-10-16 22:46:17	1350427577	1350427577	1350427577
SET TIMESTAMP=UNIX_TIMESTAMP('1970-01-02 03:04:05.123456');
SELECT @@timestamp, FROM_UNIXTIME(@@timestamp);
@@timestamp	FROM_UNIXTIME(@@timestamp)
97445.123456	1970-01-02 03:04:05.123456
SET TIME_ZONE=DEFAULT;
SET TIMESTAMP=DEFAULT;
SELECT TIME('2012-10-16 15:54:16.12');
TIME('2012-10-16 15:54:16.12')
15:54:16.12
SELECT TIMESTAMP('2012-10-16 15:54:16.12');
TIMESTAMP('2012-10-16 15:54:16.12')
2012-10-16 15:54:16.12
SELECT TIMEDIFF('10:10:10.1','00:00:00');
TIMEDIFF('10:10:10.1','00:00:00')
10:10:10.1
SELECT TIME_TO_SEC('10:10:10');
TIME_TO_SEC('10:10:10')
36610
SELECT ADDTIME(TIME('10:10:10.1'),'10:10:10.12');
ADDTIME(TIME('10:10:10.1'),'10:10:10.12')
20:20:20.22
SELECT ADDTIME(TIMESTAMP('2001-01-01 10:10:10.1'),'10:10:10.12');
ADDTIME(TIMESTAMP('2001-01-01 10:10:10.1'),'10:10:10.12')
2001-01-01 20:20:20.22
SELECT DATE_ADD('2001-01-01 00:00:00', INTERVAL 1 SECOND);
DATE_ADD('2001-01-01 00:00:00', INTERVAL 1 SECOND)
2001-01-01 00:00:01
SELECT DATE_ADD('2001-01-01 00:00:00.1', INTERVAL 1 SECOND);
DATE_ADD('2001-01-01 00:00:00.1', INTERVAL 1 SECOND)
2001-01-01 00:00:01.1
SELECT DATE_ADD('2001-01-01 00:00:00.12', INTERVAL 1 SECOND);
DATE_ADD('2001-01-01 00:00:00.12', INTERVAL 1 SECOND)
2001-01-01 00:00:01.12
SELECT DATE_ADD('2001-01-01 00:00:00.123', INTERVAL 1 SECOND);
DATE_ADD('2001-01-01 00:00:00.123', INTERVAL 1 SECOND)
2001-01-01 00:00:01.123
SELECT DATE_ADD('2001-01-01 00:00:00.1234', INTERVAL 1 SECOND);
DATE_ADD('2001-01-01 00:00:00.1234', INTERVAL 1 SECOND)
2001-01-01 00:00:01.1234
SELECT DATE_ADD('2001-01-01 00:00:00.12345', INTERVAL 1 SECOND);
DATE_ADD('2001-01-01 00:00:00.12345', INTERVAL 1 SECOND)
2001-01-01 00:00:01.12345
SELECT DATE_ADD('2001-01-01 00:00:00.123456', INTERVAL 1 SECOND);
DATE_ADD('2001-01-01 00:00:00.123456', INTERVAL 1 SECOND)
2001-01-01 00:00:01.123456
SELECT DATE_ADD('2001-01-01 00:00:00', INTERVAL 1 SECOND);
DATE_ADD('2001-01-01 00:00:00', INTERVAL 1 SECOND)
2001-01-01 00:00:01
SELECT DATE_ADD('2001-01-01 00:00:00', INTERVAL 1.1 SECOND);
DATE_ADD('2001-01-01 00:00:00', INTERVAL 1.1 SECOND)
2001-01-01 00:00:01.1
SELECT DATE_ADD('2001-01-01 00:00:00', INTERVAL 1.12 SECOND);
DATE_ADD('2001-01-01 00:00:00', INTERVAL 1.12 SECOND)
2001-01-01 00:00:01.12
SELECT DATE_ADD('2001-01-01 00:00:00', INTERVAL 1.123 SECOND);
DATE_ADD('2001-01-01 00:00:00', INTERVAL 1.123 SECOND)
2001-01-01 00:00:01.123
SELECT DATE_ADD('2001-01-01 00:00:00', INTERVAL 1.1234 SECOND);
DATE_ADD('2001-01-01 00:00:00', INTERVAL 1.1234 SECOND)
2001-01-01 00:00:01.1234
SELECT DATE_ADD('2001-01-01 00:00:00', INTERVAL 1.12345 SECOND);
DATE_ADD('2001-01-01 00:00:00', INTERVAL 1.12345 SECOND)
2001-01-01 00:00:01.12345
SELECT DATE_ADD('2001-01-01 00:00:00', INTERVAL 1.123456 SECOND);
DATE_ADD('2001-01-01 00:00:00', INTERVAL 1.123456 SECOND)
2001-01-01 00:00:01.123456
SELECT DATE_ADD('2001-01-01 00:00:00', INTERVAL -1 SECOND);
DATE_ADD('2001-01-01 00:00:00', INTERVAL -1 SECOND)
2000-12-31 23:59:59
SELECT DATE_ADD('2001-01-01 00:00:00', INTERVAL -1.1 SECOND);
DATE_ADD('2001-01-01 00:00:00', INTERVAL -1.1 SECOND)
2000-12-31 23:59:58.9
SELECT DATE_ADD('2001-01-01 00:00:00', INTERVAL -1.12 SECOND);
DATE_ADD('2001-01-01 00:00:00', INTERVAL -1.12 SECOND)
2000-12-31 23:59:58.88
SELECT DATE_ADD('2001-01-01 00:00:00', INTERVAL -1.123 SECOND);
DATE_ADD('2001-01-01 00:00:00', INTERVAL -1.123 SECOND)
2000-12-31 23:59:58.877
SELECT DATE_ADD('2001-01-01 00:00:00', INTERVAL -1.1234 SECOND);
DATE_ADD('2001-01-01 00:00:00', INTERVAL -1.1234 SECOND)
2000-12-31 23:59:58.8766
SELECT DATE_ADD('2001-01-01 00:00:00', INTERVAL -1.12345 SECOND);
DATE_ADD('2001-01-01 00:00:00', INTERVAL -1.12345 SECOND)
2000-12-31 23:59:58.87655
SELECT DATE_ADD('2001-01-01 00:00:00', INTERVAL -1.123456 SECOND);
DATE_ADD('2001-01-01 00:00:00', INTERVAL -1.123456 SECOND)
2000-12-31 23:59:58.876544
SELECT DATE_ADD('2001-01-01 00:00:00', INTERVAL 'xxx' SECOND);
DATE_ADD('2001-01-01 00:00:00', INTERVAL 'xxx' SECOND)
2001-01-01 00:00:00.000000
Warnings:
Warning	1292	Truncated incorrect DECIMAL value: 'xxx'
SELECT CONVERT_TZ('2001-01-01 10:20:30.12','+00:00','+01:00');
CONVERT_TZ('2001-01-01 10:20:30.12','+00:00','+01:00')
2001-01-01 11:20:30.12
#
# MDEV-4861 TIME/DATETIME arithmetics does not preserve INTERVAL precision
#
CREATE TABLE t1 (t0 TIME);
INSERT INTO t1 VALUES ('00:00:00');
SELECT t0 + INTERVAL 1.1 SECOND FROM t1;
t0 + INTERVAL 1.1 SECOND
00:00:01.1
CREATE TABLE t2 AS SELECT t0 + INTERVAL 1.1 SECOND FROM t1;
SHOW COLUMNS FROM t2;
Field	Type	Null	Key	Default	Extra
t0 + INTERVAL 1.1 SECOND	time(1)	YES		NULL	
DROP TABLE t1,t2;
CREATE TABLE t1 (t0 DATETIME);
INSERT INTO t1 VALUES ('2001-01-01 00:00:00');
SELECT t0 + INTERVAL 1.1 SECOND FROM t1;
t0 + INTERVAL 1.1 SECOND
2001-01-01 00:00:01.1
CREATE TABLE t2 AS SELECT t0 + INTERVAL 1.1 SECOND FROM t1;
SHOW COLUMNS FROM t2;
Field	Type	Null	Key	Default	Extra
t0 + INTERVAL 1.1 SECOND	datetime(1)	YES		NULL	
DROP TABLE t1, t2;
#
# MDEV-4843 Wrong data type for TIMESTAMP('2001-01-01','10:10:10')
#
CREATE TABLE t1 AS SELECT
TIMESTAMP('2001-01-01','10:10:10'),
TIMESTAMP('2001-01-01','10:10:10.1'),
TIMESTAMP('2001-01-01','10:10:10.12'),
TIMESTAMP('2001-01-01','10:10:10.123'),
TIMESTAMP('2001-01-01','10:10:10.1234'),
TIMESTAMP('2001-01-01','10:10:10.12345'),
TIMESTAMP('2001-01-01','10:10:10.123456'),
TIMESTAMP('2001-01-01','10:10:10.1234567');
Warnings:
Warning	1292	Truncated incorrect time value: '10:10:10.1234567'
SHOW COLUMNS FROM t1;
Field	Type	Null	Key	Default	Extra
TIMESTAMP('2001-01-01','10:10:10')	datetime	YES		NULL	
TIMESTAMP('2001-01-01','10:10:10.1')	datetime(1)	YES		NULL	
TIMESTAMP('2001-01-01','10:10:10.12')	datetime(2)	YES		NULL	
TIMESTAMP('2001-01-01','10:10:10.123')	datetime(3)	YES		NULL	
TIMESTAMP('2001-01-01','10:10:10.1234')	datetime(4)	YES		NULL	
TIMESTAMP('2001-01-01','10:10:10.12345')	datetime(5)	YES		NULL	
TIMESTAMP('2001-01-01','10:10:10.123456')	datetime(6)	YES		NULL	
TIMESTAMP('2001-01-01','10:10:10.1234567')	datetime(6)	YES		NULL	
SELECT * FROM t1;
TIMESTAMP('2001-01-01','10:10:10')	TIMESTAMP('2001-01-01','10:10:10.1')	TIMESTAMP('2001-01-01','10:10:10.12')	TIMESTAMP('2001-01-01','10:10:10.123')	TIMESTAMP('2001-01-01','10:10:10.1234')	TIMESTAMP('2001-01-01','10:10:10.12345')	TIMESTAMP('2001-01-01','10:10:10.123456')	TIMESTAMP('2001-01-01','10:10:10.1234567')
2001-01-01 10:10:10	2001-01-01 10:10:10.1	2001-01-01 10:10:10.12	2001-01-01 10:10:10.123	2001-01-01 10:10:10.1234	2001-01-01 10:10:10.12345	2001-01-01 10:10:10.123456	2001-01-01 10:10:10.123456
DROP TABLE t1;
CREATE TABLE t1 AS SELECT
TIMESTAMP('2001-01-01 00:00:00','10:10:10'),
TIMESTAMP('2001-01-01 00:00:00.1','10:10:10'),
TIMESTAMP('2001-01-01 00:00:00.12','10:10:10'),
TIMESTAMP('2001-01-01 00:00:00.123','10:10:10'),
TIMESTAMP('2001-01-01 00:00:00.1234','10:10:10'),
TIMESTAMP('2001-01-01 00:00:00.12345','10:10:10'),
TIMESTAMP('2001-01-01 00:00:00.123456','10:10:10'),
TIMESTAMP('2001-01-01 00:00:00.1234567','10:10:10');
Warnings:
Warning	1292	Truncated incorrect datetime value: '2001-01-01 00:00:00.1234567'
SHOW COLUMNS FROM t1;
Field	Type	Null	Key	Default	Extra
TIMESTAMP('2001-01-01 00:00:00','10:10:10')	datetime	YES		NULL	
TIMESTAMP('2001-01-01 00:00:00.1','10:10:10')	datetime(1)	YES		NULL	
TIMESTAMP('2001-01-01 00:00:00.12','10:10:10')	datetime(2)	YES		NULL	
TIMESTAMP('2001-01-01 00:00:00.123','10:10:10')	datetime(3)	YES		NULL	
TIMESTAMP('2001-01-01 00:00:00.1234','10:10:10')	datetime(4)	YES		NULL	
TIMESTAMP('2001-01-01 00:00:00.12345','10:10:10')	datetime(5)	YES		NULL	
TIMESTAMP('2001-01-01 00:00:00.123456','10:10:10')	datetime(6)	YES		NULL	
TIMESTAMP('2001-01-01 00:00:00.1234567','10:10:10')	datetime(6)	YES		NULL	
SELECT * FROM t1;
TIMESTAMP('2001-01-01 00:00:00','10:10:10')	TIMESTAMP('2001-01-01 00:00:00.1','10:10:10')	TIMESTAMP('2001-01-01 00:00:00.12','10:10:10')	TIMESTAMP('2001-01-01 00:00:00.123','10:10:10')	TIMESTAMP('2001-01-01 00:00:00.1234','10:10:10')	TIMESTAMP('2001-01-01 00:00:00.12345','10:10:10')	TIMESTAMP('2001-01-01 00:00:00.123456','10:10:10')	TIMESTAMP('2001-01-01 00:00:00.1234567','10:10:10')
2001-01-01 10:10:10	2001-01-01 10:10:10.1	2001-01-01 10:10:10.12	2001-01-01 10:10:10.123	2001-01-01 10:10:10.1234	2001-01-01 10:10:10.12345	2001-01-01 10:10:10.123456	2001-01-01 10:10:10.123456
DROP TABLE t1;
CREATE TABLE t1 AS SELECT
TIMESTAMP('00:00:00','10:10:10'),
TIMESTAMP(TIME('00:00:00'),'10:10:10');
SHOW COLUMNS FROM t1;
Field	Type	Null	Key	Default	Extra
TIMESTAMP('00:00:00','10:10:10')	datetime	YES		NULL	
TIMESTAMP(TIME('00:00:00'),'10:10:10')	datetime	YES		NULL	
SELECT * FROM t1;
TIMESTAMP('00:00:00','10:10:10')	TIMESTAMP(TIME('00:00:00'),'10:10:10')
NULL	NULL
DROP TABLE t1;
#
# MDEV-4869 Wrong result of MAKETIME(0, 0, -0.1)
#
SELECT MAKETIME(0, 0, -0.1);
MAKETIME(0, 0, -0.1)
NULL