3
-- testing built-in time type abstime
4
-- uses reltime and tinterval
7
-- timezones may vary based not only on location but the operating
8
-- system. the main correctness issue is that the OS may not get
9
-- daylight savings time right for times prior to Unix epoch (jan 1 1970).
11
CREATE TABLE ABSTIME_TBL (f1 abstime);
13
INSERT INTO ABSTIME_TBL (f1) VALUES (abstime 'now');
14
INSERT INTO ABSTIME_TBL (f1) VALUES (abstime 'now');
15
SELECT count(*) AS two FROM ABSTIME_TBL WHERE f1 = 'now' ;
22
DELETE FROM ABSTIME_TBL;
23
INSERT INTO ABSTIME_TBL (f1) VALUES ('Jan 14, 1973 03:14:21');
24
INSERT INTO ABSTIME_TBL (f1) VALUES (abstime 'Mon May 1 00:30:30 1995');
25
INSERT INTO ABSTIME_TBL (f1) VALUES (abstime 'epoch');
26
INSERT INTO ABSTIME_TBL (f1) VALUES (abstime 'infinity');
27
INSERT INTO ABSTIME_TBL (f1) VALUES (abstime '-infinity');
28
INSERT INTO ABSTIME_TBL (f1) VALUES (abstime 'May 10, 1947 23:59:12');
29
-- what happens if we specify slightly misformatted abstime?
30
INSERT INTO ABSTIME_TBL (f1) VALUES ('Feb 35, 1946 10:00:00');
31
ERROR: date/time field value out of range: "Feb 35, 1946 10:00:00"
32
HINT: Perhaps you need a different "datestyle" setting.
33
INSERT INTO ABSTIME_TBL (f1) VALUES ('Feb 28, 1984 25:08:10');
34
ERROR: date/time field value out of range: "Feb 28, 1984 25:08:10"
35
-- badly formatted abstimes: these should result in invalid abstimes
36
INSERT INTO ABSTIME_TBL (f1) VALUES ('bad date format');
37
ERROR: invalid input syntax for type abstime: "bad date format"
38
INSERT INTO ABSTIME_TBL (f1) VALUES ('Jun 10, 1843');
39
-- test abstime operators
40
SELECT '' AS eight, ABSTIME_TBL.*;
42
-------+------------------------------
43
| Sun Jan 14 03:14:21 1973 PST
44
| Mon May 01 00:30:30 1995 PDT
45
| Wed Dec 31 16:00:00 1969 PST
48
| Sat May 10 23:59:12 1947 PST
52
SELECT '' AS six, ABSTIME_TBL.*
53
WHERE ABSTIME_TBL.f1 < abstime 'Jun 30, 2001';
55
-----+------------------------------
56
| Sun Jan 14 03:14:21 1973 PST
57
| Mon May 01 00:30:30 1995 PDT
58
| Wed Dec 31 16:00:00 1969 PST
60
| Sat May 10 23:59:12 1947 PST
63
SELECT '' AS six, ABSTIME_TBL.*
64
WHERE ABSTIME_TBL.f1 > abstime '-infinity';
66
-----+------------------------------
67
| Sun Jan 14 03:14:21 1973 PST
68
| Mon May 01 00:30:30 1995 PDT
69
| Wed Dec 31 16:00:00 1969 PST
71
| Sat May 10 23:59:12 1947 PST
75
SELECT '' AS six, ABSTIME_TBL.*
76
WHERE abstime 'May 10, 1947 23:59:12' <> ABSTIME_TBL.f1;
78
-----+------------------------------
79
| Sun Jan 14 03:14:21 1973 PST
80
| Mon May 01 00:30:30 1995 PDT
81
| Wed Dec 31 16:00:00 1969 PST
87
SELECT '' AS three, ABSTIME_TBL.*
88
WHERE abstime 'epoch' >= ABSTIME_TBL.f1;
90
-------+------------------------------
91
| Wed Dec 31 16:00:00 1969 PST
93
| Sat May 10 23:59:12 1947 PST
96
SELECT '' AS four, ABSTIME_TBL.*
97
WHERE ABSTIME_TBL.f1 <= abstime 'Jan 14, 1973 03:14:21';
99
------+------------------------------
100
| Sun Jan 14 03:14:21 1973 PST
101
| Wed Dec 31 16:00:00 1969 PST
103
| Sat May 10 23:59:12 1947 PST
106
SELECT '' AS four, ABSTIME_TBL.*
107
WHERE ABSTIME_TBL.f1 <?>
108
tinterval '["Apr 1 1950 00:00:00" "Dec 30 1999 23:00:00"]';
110
------+------------------------------
111
| Sun Jan 14 03:14:21 1973 PST
112
| Mon May 01 00:30:30 1995 PDT
113
| Wed Dec 31 16:00:00 1969 PST
116
SELECT '' AS four, f1 AS abstime,
117
date_part('year', f1) AS year, date_part('month', f1) AS month,
118
date_part('day',f1) AS day, date_part('hour', f1) AS hour,
119
date_part('minute', f1) AS minute, date_part('second', f1) AS second
123
four | abstime | year | month | day | hour | minute | second
124
------+------------------------------+------+-------+-----+------+--------+--------
125
| Sat May 10 23:59:12 1947 PST | 1947 | 5 | 10 | 23 | 59 | 12
126
| Wed Dec 31 16:00:00 1969 PST | 1969 | 12 | 31 | 16 | 0 | 0
127
| Sun Jan 14 03:14:21 1973 PST | 1973 | 1 | 14 | 3 | 14 | 21
128
| Mon May 01 00:30:30 1995 PDT | 1995 | 5 | 1 | 0 | 30 | 30