mariadb/mysql-test/t/func_time.test

#
# time functions
#
--disable_warnings
drop table if exists t1,t2,t3;
--enable_warnings

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");
select period_add("9602",-12),period_diff(199505,"9404") ;

select now()-now(),weekday(curdate())-weekday(now()),unix_timestamp()-unix_timestamp(now());
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;
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);
select sec_to_time(time_to_sec('-838:59:59'));
select now()-curdate()*1000000-curtime();
select strcmp(current_timestamp(),concat(current_date()," ",current_time()));
select strcmp(localtime(),concat(current_date()," ",current_time()));
select strcmp(localtimestamp(),concat(current_date()," ",current_time()));
select date_format("1997-01-02 03:04:05", "%M %W %D %Y %y %m %d %h %i %s %w");
select date_format("1997-01-02", concat("%M %W %D ","%Y %y %m %d %h %i %s %w"));
select dayofmonth("1997-01-02"),dayofmonth(19970323);
select month("1997-01-02"),year("98-02-03"),dayofyear("1997-12-31");
select month("2001-02-00"),year("2001-00-00");
select DAYOFYEAR("1997-03-03"), WEEK("1998-03-03"), QUARTER(980303);
select HOUR("1997-03-03 23:03:22"), MINUTE("23:03:22"), SECOND(230322);

# Test of week and yearweek
select week(19980101),week(19970101),week(19980101,1),week(19970101,1);
select week(19981231),week(19971231),week(19981231,1),week(19971231,1);
select week(19950101),week(19950101,1);
select yearweek('1981-12-31',1),yearweek('1982-01-01',1),yearweek('1982-12-31',1),yearweek('1983-01-01',1);
select yearweek('1987-01-01',1),yearweek('1987-01-01');
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';
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';
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';
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';
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';
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';
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';
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';
select week(19981231,2), week(19981231,3), week(20000101,2), week(20000101,3);
select week(20001231,2),week(20001231,3);

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';
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';
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';
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';
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';

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);

set default_week_format = 6;
select week(20001231), week(20001231,6);
set default_week_format = 0;

set default_week_format = 2;
select week(20001231),week(20001231,2),week(20001231,0);
set default_week_format = 0;

select date_format('1998-12-31','%x-%v'),date_format('1999-01-01','%x-%v');
select date_format('1999-12-31','%x-%v'),date_format('2000-01-01','%x-%v');

select dayname("1962-03-03"),dayname("1962-03-03")+0;
select monthname("1972-03-04"),monthname("1972-03-04")+0;
select time_format(19980131000000,'%H|%I|%k|%l|%i|%p|%r|%S|%T');
select time_format(19980131010203,'%H|%I|%k|%l|%i|%p|%r|%S|%T');
select time_format(19980131131415,'%H|%I|%k|%l|%i|%p|%r|%S|%T');
select time_format(19980131010015,'%H|%I|%k|%l|%i|%p|%r|%S|%T');
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');
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');
select date_add("1997-12-31 23:59:59",INTERVAL 1 SECOND);
select date_add("1997-12-31 23:59:59",INTERVAL 1 MINUTE);
select date_add("1997-12-31 23:59:59",INTERVAL 1 HOUR);
select date_add("1997-12-31 23:59:59",INTERVAL 1 DAY);
select date_add("1997-12-31 23:59:59",INTERVAL 1 MONTH);
select date_add("1997-12-31 23:59:59",INTERVAL 1 YEAR);
select date_add("1997-12-31 23:59:59",INTERVAL "1:1" MINUTE_SECOND);
select date_add("1997-12-31 23:59:59",INTERVAL "1:1" HOUR_MINUTE);
select date_add("1997-12-31 23:59:59",INTERVAL "1:1" DAY_HOUR);
select date_add("1997-12-31 23:59:59",INTERVAL "1 1" YEAR_MONTH);
select date_add("1997-12-31 23:59:59",INTERVAL "1:1:1" HOUR_SECOND);
select date_add("1997-12-31 23:59:59",INTERVAL "1 1:1" DAY_MINUTE);
select date_add("1997-12-31 23:59:59",INTERVAL "1 1:1:1" DAY_SECOND);

select date_sub("1998-01-01 00:00:00",INTERVAL 1 SECOND);
select date_sub("1998-01-01 00:00:00",INTERVAL 1 MINUTE);
select date_sub("1998-01-01 00:00:00",INTERVAL 1 HOUR);
select date_sub("1998-01-01 00:00:00",INTERVAL 1 DAY);
select date_sub("1998-01-01 00:00:00",INTERVAL 1 MONTH);
select date_sub("1998-01-01 00:00:00",INTERVAL 1 YEAR);
select date_sub("1998-01-01 00:00:00",INTERVAL "1:1" MINUTE_SECOND);
select date_sub("1998-01-01 00:00:00",INTERVAL "1:1" HOUR_MINUTE);
select date_sub("1998-01-01 00:00:00",INTERVAL "1:1" DAY_HOUR);
select date_sub("1998-01-01 00:00:00",INTERVAL "1 1" YEAR_MONTH);
select date_sub("1998-01-01 00:00:00",INTERVAL "1:1:1" HOUR_SECOND);
select date_sub("1998-01-01 00:00:00",INTERVAL "1 1:1" DAY_MINUTE);
select date_sub("1998-01-01 00:00:00",INTERVAL "1 1:1:1" DAY_SECOND);

select date_add("1997-12-31 23:59:59",INTERVAL 100000 SECOND);
select date_add("1997-12-31 23:59:59",INTERVAL -100000 MINUTE);
select date_add("1997-12-31 23:59:59",INTERVAL 100000 HOUR);
select date_add("1997-12-31 23:59:59",INTERVAL -100000 DAY);
select date_add("1997-12-31 23:59:59",INTERVAL 100000 MONTH);
select date_add("1997-12-31 23:59:59",INTERVAL -100000 YEAR);
select date_add("1997-12-31 23:59:59",INTERVAL "10000:1" MINUTE_SECOND);
select date_add("1997-12-31 23:59:59",INTERVAL "-10000:1" HOUR_MINUTE);
select date_add("1997-12-31 23:59:59",INTERVAL "10000:1" DAY_HOUR);
select date_add("1997-12-31 23:59:59",INTERVAL "-100 1" YEAR_MONTH);
select date_add("1997-12-31 23:59:59",INTERVAL "10000:99:99" HOUR_SECOND);
select date_add("1997-12-31 23:59:59",INTERVAL " -10000 99:99" DAY_MINUTE);
select date_add("1997-12-31 23:59:59",INTERVAL "10000 99:99:99" DAY_SECOND);
select "1997-12-31 23:59:59" + INTERVAL 1 SECOND;
select INTERVAL 1 DAY + "1997-12-31";
select "1998-01-01 00:00:00" - INTERVAL 1 SECOND;

select date_sub("1998-01-02",INTERVAL 31 DAY);
select date_add("1997-12-31",INTERVAL 1 SECOND);
select date_add("1997-12-31",INTERVAL 1 DAY);
select date_add(NULL,INTERVAL 100000 SECOND);
select date_add("1997-12-31 23:59:59",INTERVAL NULL SECOND);
select date_add("1997-12-31 23:59:59",INTERVAL NULL MINUTE_SECOND);
select date_add("9999-12-31 23:59:59",INTERVAL 1 SECOND);
select date_sub("0000-00-00 00:00:00",INTERVAL 1 SECOND);
select date_add('1998-01-30',Interval 1 month);
select date_add('1998-01-30',Interval '2:1' year_month);
select date_add('1996-02-29',Interval '1' year);
select extract(YEAR FROM "1999-01-02 10:11:12");
select extract(YEAR_MONTH FROM "1999-01-02");
select extract(DAY FROM "1999-01-02");
select extract(DAY_HOUR FROM "1999-01-02 10:11:12");
select extract(DAY_MINUTE FROM "02 10:11:12");
select extract(DAY_SECOND FROM "225 10:11:12");
select extract(HOUR FROM "1999-01-02 10:11:12");
select extract(HOUR_MINUTE FROM "10:11:12");
select extract(HOUR_SECOND FROM "10:11:12");
select extract(MINUTE FROM "10:11:12");
select extract(MINUTE_SECOND FROM "10:11:12");
select extract(SECOND FROM "1999-01-02 10:11:12");
select extract(MONTH FROM "2001-02-00");

#
# Test big intervals (Bug #3498)
#
SELECT "1900-01-01 00:00:00" + INTERVAL 2147483648 SECOND;
SELECT "1900-01-01 00:00:00" + INTERVAL "1:2147483647" MINUTE_SECOND;
SELECT "1900-01-01 00:00:00" + INTERVAL "100000000:214748364700" MINUTE_SECOND;SELECT "1900-01-01 00:00:00" + INTERVAL 1<<37 SECOND;
SELECT "1900-01-01 00:00:00" + INTERVAL 1<<31 MINUTE;
SELECT "1900-01-01 00:00:00" + INTERVAL 1<<20 HOUR;

SELECT "1900-01-01 00:00:00" + INTERVAL 1<<38 SECOND;
SELECT "1900-01-01 00:00:00" + INTERVAL 1<<33 MINUTE;
SELECT "1900-01-01 00:00:00" + INTERVAL 1<<30 HOUR;
SELECT "1900-01-01 00:00:00" + INTERVAL "1000000000:214748364700" MINUTE_SECOND;

#
# Bug #614 (multiple extracts in where)
#

create table t1 (ctime varchar(20));
insert into t1 values ('2001-01-12 12:23:40');
select ctime, hour(ctime) from t1;
select ctime from t1 where extract(MONTH FROM ctime) = 1 AND extract(YEAR FROM ctime) = 2001;
drop table t1;

#
# Test bug with monthname() and NULL
#

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;
select monthname(date) from t1 inner join t2 on t1.id = t2.id order by t1.id;
drop table t1,t2;

#
# Test bug with month() and year() on text fields with wrong information

CREATE TABLE t1 (updated text) ENGINE=MyISAM;
INSERT INTO t1 VALUES ('');
SELECT month(updated) from t1;
SELECT year(updated) from t1;
drop table t1;

#
# Check that functions work identically on 0000-00-00 as a constant and on a
# column
#

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;
select dayofmonth("0000-00-00"),dayofmonth(d),dayofmonth(dt),dayofmonth(t),dayofmonth(c) from t1;
select month("0000-00-00"),month(d),month(dt),month(t),month(c) from t1;
select quarter("0000-00-00"),quarter(d),quarter(dt),quarter(t),quarter(c) from t1;
select week("0000-00-00"),week(d),week(dt),week(t),week(c) from t1;
select year("0000-00-00"),year(d),year(dt),year(t),year(c) from t1;
select yearweek("0000-00-00"),yearweek(d),yearweek(dt),yearweek(t),yearweek(c) from t1;
select to_days("0000-00-00"),to_days(d),to_days(dt),to_days(t),to_days(c) from t1;
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;
drop table t1;


#
# Test problem with TIMESTAMP and BETWEEN
#

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");

# The following statement should be fixed to return a row in 4.1
select * from t1, t2 where t1.start between t2.ctime1 and t2.ctime2;
select * from t1, t2 where t1.start >= t2.ctime1 and t1.start <= t2.ctime2;
select * from t1, t3 where t1.start between t3.ctime1 and t3.ctime2;
drop table t1,t2,t3;

#
# Test unix timestamp
#
select @a:=FROM_UNIXTIME(1);
select unix_timestamp(@a);
select unix_timestamp('1969-12-01 19:00:01');

#
# Test for bug #6439 "unix_timestamp() function returns wrong datetime 
# values for too big argument" and bug #7515 "from_unixtime(0) now
# returns NULL instead of the epoch". unix_timestamp() should return error
# for too big or negative argument. It should return Epoch value for zero
# argument since it seems that many user's rely on this fact.
#
select from_unixtime(-1);
select from_unixtime(2145916800);
select from_unixtime(0);

#
# Test types from + INTERVAL
#

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;
select date_add("1997-12-31",INTERVAL 1 SECOND);
select date_add("1997-12-31",INTERVAL "1 1" YEAR_MONTH);

select date_add(datetime, INTERVAL 1 SECOND) from t1;
select date_add(datetime, INTERVAL 1 YEAR) from t1;

select date_add(date,INTERVAL 1 SECOND) from t1;
select date_add(date,INTERVAL 1 MINUTE) from t1;
select date_add(date,INTERVAL 1 HOUR) from t1;
select date_add(date,INTERVAL 1 DAY) from t1;
select date_add(date,INTERVAL 1 MONTH) from t1;
select date_add(date,INTERVAL 1 YEAR) from t1;
select date_add(date,INTERVAL "1:1" MINUTE_SECOND) from t1;
select date_add(date,INTERVAL "1:1" HOUR_MINUTE) from t1;
select date_add(date,INTERVAL "1:1" DAY_HOUR) from t1;
select date_add(date,INTERVAL "1 1" YEAR_MONTH) from t1;
select date_add(date,INTERVAL "1:1:1" HOUR_SECOND) from t1;
select date_add(date,INTERVAL "1 1:1" DAY_MINUTE) from t1;
select date_add(date,INTERVAL "1 1:1:1" DAY_SECOND) from t1;
select date_add(date,INTERVAL "1" WEEK) from t1;
select date_add(date,INTERVAL "1" QUARTER) from t1;
select timestampadd(MINUTE, 1, date) from t1;
select timestampadd(WEEK, 1, date) from t1;
select timestampadd(SQL_TSI_SECOND, 1, date) from t1;
# Prepared statements doesn't support FRAC_SECOND yet
--disable_ps_protocol
select timestampadd(SQL_TSI_FRAC_SECOND, 1, date) from t1;
--enable_ps_protocol

select timestampdiff(MONTH, '2001-02-01', '2001-05-01') as a;
select timestampdiff(YEAR, '2002-05-01', '2001-01-01') as a;
select timestampdiff(QUARTER, '2002-05-01', '2001-01-01') as a;
select timestampdiff(MONTH, '2000-03-28', '2000-02-29') as a;
select timestampdiff(MONTH, '1991-03-28', '2000-02-29') as a;
select timestampdiff(SQL_TSI_WEEK, '2001-02-01', '2001-05-01') as a;
select timestampdiff(SQL_TSI_HOUR, '2001-02-01', '2001-05-01') as a;
select timestampdiff(SQL_TSI_DAY, '2001-02-01', '2001-05-01') as a;
select timestampdiff(SQL_TSI_MINUTE, '2001-02-01 12:59:59', '2001-05-01 12:58:59') as a;
select timestampdiff(SQL_TSI_SECOND, '2001-02-01 12:59:59', '2001-05-01 12:58:58') as a;
select timestampdiff(SQL_TSI_FRAC_SECOND, '2001-02-01 12:59:59.120000', '2001-05-01 12:58:58.119999') as a;

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;

select date_add(time,INTERVAL 1 SECOND) from t1;
drop table t1;

# test for last_day
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');

create table t1 select last_day('2000-02-05') as a,
                from_days(to_days("960101")) as b;
describe t1;
select * from t1;
drop table t1;
select last_day('2000-02-05') as a,
       from_days(to_days("960101")) as b;

select date_add(last_day("1997-12-1"), INTERVAL 1 DAY);
select length(last_day("1997-12-1"));
select last_day("1997-12-1")+0;
select last_day("1997-12-1")+0.0;

# Test SAPDB UTC_% functions. This part is TZ dependant (It is supposed that
# TZ variable set to GMT-3
select strcmp(date_sub(localtimestamp(), interval 3 hour), utc_timestamp())=0;
select strcmp(date_format(date_sub(localtimestamp(), interval 3 hour),"%T"), utc_time())=0;
select strcmp(date_format(date_sub(localtimestamp(), interval 3 hour),"%Y-%m-%d"), utc_date())=0;
select strcmp(date_format(utc_timestamp(),"%T"), utc_time())=0;
select strcmp(date_format(utc_timestamp(),"%Y-%m-%d"), utc_date())=0;
select strcmp(concat(utc_date(),' ',utc_time()),utc_timestamp())=0;

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);

SET @TMP=NOW();
CREATE TABLE t1 (d DATETIME);
INSERT INTO t1 VALUES (NOW());
INSERT INTO t1 VALUES (NOW());
INSERT INTO t1 VALUES (NOW());
SELECT count(*) FROM t1 WHERE d>FROM_DAYS(TO_DAYS(@TMP)) AND d<=FROM_DAYS(TO_DAYS(@TMP)+1);
DROP TABLE t1;


# End of 4.1 tests

explain extended select timestampdiff(SQL_TSI_WEEK, '2001-02-01', '2001-05-01') as a1,
			timestampdiff(SQL_TSI_FRAC_SECOND, '2001-02-01 12:59:59.120000', '2001-05-01 12:58:58.119999') as a2;

#
# Bug #10568
#

select last_day('2005-00-00');
select last_day('2005-00-01');
select last_day('2005-01-00');

#
# Bug #10590: %h, %I, and %l format specifies should all return results in
# the 0-11 range
#
select time_format('100:00:00', '%H %k %h %I %l');