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# name: test/sql/function/timestamp/test_icu_datesub.test
# description: Test ICU date difference function
# group: [timestamp]
require icu
statement ok
SET Calendar = 'gregorian';
statement ok
SET TimeZone = 'America/Los_Angeles';
#
# TIMESTAMPTZ
#
# Ragged months
query I
select DATESUB('month', '2004-01-31 12:00:00-08'::TIMESTAMPTZ, '2004-02-29 13:00:00-08'::TIMESTAMPTZ);
----
1
query I
select DATESUB('month', '2004-01-29 12:00:00-08'::TIMESTAMPTZ, '2004-02-29 13:00:00-08'::TIMESTAMPTZ);
----
1
query I
select DATESUB('month', '2004-02-29 12:00:00-08'::TIMESTAMPTZ, '2004-03-31 13:00:00-08'::TIMESTAMPTZ);
----
1
query I
select DATESUB('month', '2004-02-29 13:00:00-08'::TIMESTAMPTZ, '2004-03-31 12:00:00-08'::TIMESTAMPTZ);
----
1
query I
select DATESUB('quarter', '2004-01-31 12:00:00-07'::TIMESTAMPTZ, '2004-04-30 13:00:00-07'::TIMESTAMPTZ);
----
1
query I
select DATESUB('year', '2004-02-29 12:00:00-08'::TIMESTAMPTZ, '2005-02-28 13:00:00-08'::TIMESTAMPTZ);
----
1
query I
select DATESUB('isoyear', '2004-02-29 12:00:00-08'::TIMESTAMPTZ, '2005-02-28 13:00:00-08'::TIMESTAMPTZ);
----
1
query I
select DATESUB('decade', '1994-02-28 12:00:00-08'::TIMESTAMPTZ, '2004-02-29 13:00:00-08'::TIMESTAMPTZ);
----
1
query I
select DATESUB('century', '1904-02-29 12:00:00-08'::TIMESTAMPTZ, '2005-02-28 13:00:00-08'::TIMESTAMPTZ);
----
1
# Ragged incomplete months
query I
select DATESUB('month', '2004-01-31 13:00:00-08'::TIMESTAMPTZ, '2004-02-29 12:00:00-08'::TIMESTAMPTZ);
----
0
query I
select DATESUB('month', '2004-01-29 13:00:00-08'::TIMESTAMPTZ, '2004-02-29 12:00:00-08'::TIMESTAMPTZ);
----
0
query I
select DATESUB('quarter', '2004-01-31 13:00:00-08'::TIMESTAMPTZ, '2004-04-30 12:00:00-07'::TIMESTAMPTZ);
----
0
query I
select DATESUB('year', '2004-02-29 13:00:00-08'::TIMESTAMPTZ, '2005-02-28 12:00:00-08'::TIMESTAMPTZ);
----
0
query I
select DATESUB('isoyear', '2004-02-29 13:00:00-08'::TIMESTAMPTZ, '2005-02-28 12:00:00-08'::TIMESTAMPTZ);
----
0
query I
select DATESUB('decade', '1992-02-29 13:00:00-08'::TIMESTAMPTZ, '2002-02-28 12:00:00-08'::TIMESTAMPTZ);
----
0
query I
select DATESUB('century', '1904-02-29 13:00:00-08'::TIMESTAMPTZ, '2004-02-28 12:00:00-08'::TIMESTAMPTZ);
----
0
query I
select DATESUB('millennium', '1004-02-29 11:00:00-08'::TIMESTAMPTZ, '2004-02-29 11:00:00-08'::TIMESTAMPTZ);
----
0
# Sub-month
foreach datepart day doy dow isodow julian
query I
select DATESUB('${datepart}', '2004-01-31 12:00:00-08'::TIMESTAMPTZ, '2004-02-29 13:00:00-08'::TIMESTAMPTZ);
----
29
query I
select DATESUB('${datepart}', '2004-01-31 13:00:00-08'::TIMESTAMPTZ, '2004-02-29 12:00:00-08'::TIMESTAMPTZ);
----
28
endloop
foreach datepart week yearweek
query I
select DATESUB('${datepart}', '2004-01-31 12:00:00-08'::TIMESTAMPTZ, '2004-02-28 13:00:00-08'::TIMESTAMPTZ);
----
4
query I
select DATESUB('${datepart}', '2004-01-31 13:00:00-08'::TIMESTAMPTZ, '2004-02-28 12:00:00-08'::TIMESTAMPTZ);
----
3
endloop
query I
select DATESUB('hour', '2004-01-31 12:00:00-08'::TIMESTAMPTZ, '2004-02-01 13:05:00-08'::TIMESTAMPTZ);
----
25
query I
select DATESUB('hour', '2004-01-31 12:00:00-08'::TIMESTAMPTZ, '2004-02-01 12:00:00-08'::TIMESTAMPTZ);
----
24
query I
select DATESUB('hour', '2004-01-31 13:00:00-08'::TIMESTAMPTZ, '2004-02-01 12:05:00-08'::TIMESTAMPTZ);
----
23
query I
select DATESUB('minute', '2004-01-31 12:00:00-08'::TIMESTAMPTZ, '2004-02-01 13:05:00-08'::TIMESTAMPTZ);
----
1505
query I
select DATESUB('minute', '2004-01-31 12:00:00-08'::TIMESTAMPTZ, '2004-02-01 12:00:00-08'::TIMESTAMPTZ);
----
1440
query I
select DATESUB('minute', '2004-01-31 13:00:00-08'::TIMESTAMPTZ, '2004-02-01 12:05:00-08'::TIMESTAMPTZ);
----
1385
query I
select DATESUB('second', '2004-01-31 12:00:00-08'::TIMESTAMPTZ, '2004-02-01 12:00:05-08'::TIMESTAMPTZ);
----
86405
query I
select DATESUB('second', '2004-01-31 12:00:00-08'::TIMESTAMPTZ, '2004-02-01 12:00:00-08'::TIMESTAMPTZ);
----
86400
query I
select DATESUB('second', '2004-01-31 12:00:05-08'::TIMESTAMPTZ, '2004-02-01 12:00:00-08'::TIMESTAMPTZ);
----
86395
query I
select DATESUB('millisecond', '2004-01-31 12:00:00-08'::TIMESTAMPTZ, '2004-02-01 12:00:00.050-08'::TIMESTAMPTZ);
----
86400050
query I
select DATESUB('millisecond', '2004-01-31 12:00:00-08'::TIMESTAMPTZ, '2004-02-01 12:00:00-08'::TIMESTAMPTZ);
----
86400000
query I
select DATESUB('millisecond', '2004-01-31 12:00:00.050-08'::TIMESTAMPTZ, '2004-02-01 12:00:00-08'::TIMESTAMPTZ);
----
86399950
query I
select DATESUB('microsecond', '2004-01-31 12:00:00-08'::TIMESTAMPTZ, '2004-02-01 12:00:00.000050-08'::TIMESTAMPTZ);
----
86400000050
query I
select DATESUB('microsecond', '2004-01-31 12:00:00-08'::TIMESTAMPTZ, '2004-02-01 12:00:00-08'::TIMESTAMPTZ);
----
86400000000
query I
select DATESUB('microsecond', '2004-01-31 12:00:00.000050-08'::TIMESTAMPTZ, '2004-02-01 12:00:00-08'::TIMESTAMPTZ);
----
86399999950
#
# Infinities
#
foreach specifier year isoyear month day decade century millennium quarter week microseconds milliseconds second minute hour julian
foreach lspecial infinity -infinity 2004-01-31T12:00:00.000050-08
foreach rspecial infinity -infinity
query I
SELECT DATESUB('${specifier}', '${lspecial}'::TIMESTAMPTZ, '${rspecial}'::TIMESTAMPTZ);
----
NULL
query I
SELECT DATESUB('${specifier}', '${rspecial}'::TIMESTAMPTZ, '${lspecial}'::TIMESTAMPTZ);
----
NULL
endloop
endloop
endloop
# Negation
statement ok
CREATE TABLE datetime1 AS
SELECT '2004-01-31 12:00:00-08'::TIMESTAMPTZ AS startdate, '2004-02-29 13:05:00-08'::TIMESTAMPTZ AS enddate;
statement ok
CREATE TABLE dateparts AS SELECT datepart FROM (VALUES
('year'),
('quarter'),
('month'),
('day'),
('dayofyear'),
('hour'),
('minute'),
('second'),
('millisecond'),
('microsecond'),
('decade'),
('century'),
('millennium'),
('week'),
('yearweek'),
('isoyear')
) tbl(datepart)
# ICU field difference is almost symmetric,
# but the clamping to the end of a month only works forward.
query II
SELECT DATESUB(datepart, startdate, enddate) + DATESUB(datepart, enddate, startdate), datepart
FROM datetime1, dateparts
----
0 year
0 quarter
1 month
0 day
0 dayofyear
0 hour
0 minute
0 second
0 millisecond
0 microsecond
0 decade
0 century
0 millennium
0 week
0 yearweek
0 isoyear
# Table
foreach datepart year month day hour minute second millisecond microsecond
query I
SELECT DATESUB('${datepart}', startdate, startdate + INTERVAL 1 ${datepart})
FROM (
SELECT '2021-07-30 00:00:00-07'::TIMESTAMPTZ + INTERVAL (d) DAY AS startdate
FROM range(0, 5) tbl(d)
) days
----
1
1
1
1
1
endloop
|
