6
SET IntervalStyle to postgres;
8
-- check acceptance of "time zone style"
9
SELECT INTERVAL '01:00' AS "One hour";
10
SELECT INTERVAL '+02:00' AS "Two hours";
11
SELECT INTERVAL '-08:00' AS "Eight hours";
12
SELECT INTERVAL '-1 +02:03' AS "22 hours ago...";
13
SELECT INTERVAL '-1 days +02:03' AS "22 hours ago...";
14
SELECT INTERVAL '1.5 weeks' AS "Ten days twelve hours";
15
SELECT INTERVAL '1.5 months' AS "One month 15 days";
16
SELECT INTERVAL '10 years -11 month -12 days +13:14' AS "9 years...";
18
CREATE TABLE INTERVAL_TBL (f1 interval);
20
INSERT INTO INTERVAL_TBL (f1) VALUES ('@ 1 minute');
21
INSERT INTO INTERVAL_TBL (f1) VALUES ('@ 5 hour');
22
INSERT INTO INTERVAL_TBL (f1) VALUES ('@ 10 day');
23
INSERT INTO INTERVAL_TBL (f1) VALUES ('@ 34 year');
24
INSERT INTO INTERVAL_TBL (f1) VALUES ('@ 3 months');
25
INSERT INTO INTERVAL_TBL (f1) VALUES ('@ 14 seconds ago');
26
INSERT INTO INTERVAL_TBL (f1) VALUES ('1 day 2 hours 3 minutes 4 seconds');
27
INSERT INTO INTERVAL_TBL (f1) VALUES ('6 years');
28
INSERT INTO INTERVAL_TBL (f1) VALUES ('5 months');
29
INSERT INTO INTERVAL_TBL (f1) VALUES ('5 months 12 hours');
31
-- badly formatted interval
32
INSERT INTO INTERVAL_TBL (f1) VALUES ('badly formatted interval');
33
INSERT INTO INTERVAL_TBL (f1) VALUES ('@ 30 eons ago');
35
-- test interval operators
37
SELECT '' AS ten, * FROM INTERVAL_TBL;
39
SELECT '' AS nine, * FROM INTERVAL_TBL
40
WHERE INTERVAL_TBL.f1 <> interval '@ 10 days';
42
SELECT '' AS three, * FROM INTERVAL_TBL
43
WHERE INTERVAL_TBL.f1 <= interval '@ 5 hours';
45
SELECT '' AS three, * FROM INTERVAL_TBL
46
WHERE INTERVAL_TBL.f1 < interval '@ 1 day';
48
SELECT '' AS one, * FROM INTERVAL_TBL
49
WHERE INTERVAL_TBL.f1 = interval '@ 34 years';
51
SELECT '' AS five, * FROM INTERVAL_TBL
52
WHERE INTERVAL_TBL.f1 >= interval '@ 1 month';
54
SELECT '' AS nine, * FROM INTERVAL_TBL
55
WHERE INTERVAL_TBL.f1 > interval '@ 3 seconds ago';
57
SELECT '' AS fortyfive, r1.*, r2.*
58
FROM INTERVAL_TBL r1, INTERVAL_TBL r2
60
ORDER BY r1.f1, r2.f1;
63
-- Test multiplication and division with intervals.
64
-- Floating point arithmetic rounding errors can lead to unexpected results,
65
-- though the code attempts to do the right thing and round up to days and
66
-- minutes to avoid results such as '3 days 24:00 hours' or '14:20:60'.
67
-- Note that it is expected for some day components to be greater than 29 and
68
-- some time components be greater than 23:59:59 due to how intervals are
71
CREATE TABLE INTERVAL_MULDIV_TBL (span interval);
72
COPY INTERVAL_MULDIV_TBL FROM STDIN;
74
-41 mon -12 days +360:00
76
9 mon -27 days 12:34:56
77
-3 years 482 days 76:54:32.189
83
SELECT span * 0.3 AS product
84
FROM INTERVAL_MULDIV_TBL;
86
SELECT span * 8.2 AS product
87
FROM INTERVAL_MULDIV_TBL;
89
SELECT span / 10 AS quotient
90
FROM INTERVAL_MULDIV_TBL;
92
SELECT span / 100 AS quotient
93
FROM INTERVAL_MULDIV_TBL;
95
DROP TABLE INTERVAL_MULDIV_TBL;
97
SET DATESTYLE = 'postgres';
98
SET IntervalStyle to postgres_verbose;
100
SELECT '' AS ten, * FROM INTERVAL_TBL;
102
-- test avg(interval), which is somewhat fragile since people have been
103
-- known to change the allowed input syntax for type interval without
104
-- updating pg_aggregate.agginitval
106
select avg(f1) from interval_tbl;
108
-- test long interval input
109
select '4 millenniums 5 centuries 4 decades 1 year 4 months 4 days 17 minutes 31 seconds'::interval;
112
-- test justify_hours() and justify_days()
114
SELECT justify_hours(interval '6 months 3 days 52 hours 3 minutes 2 seconds') as "6 mons 5 days 4 hours 3 mins 2 seconds";
115
SELECT justify_days(interval '6 months 36 days 5 hours 4 minutes 3 seconds') as "7 mons 6 days 5 hours 4 mins 3 seconds";
117
-- test justify_interval()
119
SELECT justify_interval(interval '1 month -1 hour') as "1 month -1 hour";
121
-- test fractional second input, and detection of duplicate units
122
SET DATESTYLE = 'ISO';
123
SET IntervalStyle TO postgres;
125
SELECT '1 millisecond'::interval, '1 microsecond'::interval,
126
'500 seconds 99 milliseconds 51 microseconds'::interval;
127
SELECT '3 days 5 milliseconds'::interval;
129
SELECT '1 second 2 seconds'::interval; -- error
130
SELECT '10 milliseconds 20 milliseconds'::interval; -- error
131
SELECT '5.5 seconds 3 milliseconds'::interval; -- error
132
SELECT '1:20:05 5 microseconds'::interval; -- error
133
SELECT '1 day 1 day'::interval; -- error
134
SELECT interval '1-2'; -- SQL year-month literal
135
SELECT interval '999' second; -- oversize leading field is ok
136
SELECT interval '999' minute;
137
SELECT interval '999' hour;
138
SELECT interval '999' day;
139
SELECT interval '999' month;
141
-- test SQL-spec syntaxes for restricted field sets
142
SELECT interval '1' year;
143
SELECT interval '2' month;
144
SELECT interval '3' day;
145
SELECT interval '4' hour;
146
SELECT interval '5' minute;
147
SELECT interval '6' second;
148
SELECT interval '1' year to month;
149
SELECT interval '1-2' year to month;
150
SELECT interval '1 2' day to hour;
151
SELECT interval '1 2:03' day to hour;
152
SELECT interval '1 2:03:04' day to hour;
153
SELECT interval '1 2' day to minute;
154
SELECT interval '1 2:03' day to minute;
155
SELECT interval '1 2:03:04' day to minute;
156
SELECT interval '1 2' day to second;
157
SELECT interval '1 2:03' day to second;
158
SELECT interval '1 2:03:04' day to second;
159
SELECT interval '1 2' hour to minute;
160
SELECT interval '1 2:03' hour to minute;
161
SELECT interval '1 2:03:04' hour to minute;
162
SELECT interval '1 2' hour to second;
163
SELECT interval '1 2:03' hour to second;
164
SELECT interval '1 2:03:04' hour to second;
165
SELECT interval '1 2' minute to second;
166
SELECT interval '1 2:03' minute to second;
167
SELECT interval '1 2:03:04' minute to second;
168
SELECT interval '123 11' day to hour; -- ok
169
SELECT interval '123 11' day; -- not ok
170
SELECT interval '123 11'; -- not ok, too ambiguous
172
-- test syntaxes for restricted precision
173
SELECT interval(0) '1 day 01:23:45.6789';
174
SELECT interval(2) '1 day 01:23:45.6789';
175
SELECT interval '12:34.5678' minute to second(2); -- per SQL spec
176
SELECT interval(2) '12:34.5678' minute to second; -- historical PG
177
SELECT interval(2) '12:34.5678' minute to second(2); -- syntax error
178
SELECT interval '1.234' second;
179
SELECT interval '1.234' second(2);
180
SELECT interval '1 2.345' day to second(2);
181
SELECT interval '1 2:03' day to second(2);
182
SELECT interval '1 2:03.4567' day to second(2);
183
SELECT interval '1 2:03:04.5678' day to second(2);
184
SELECT interval '1 2.345' hour to second(2);
185
SELECT interval '1 2:03.45678' hour to second(2);
186
SELECT interval '1 2:03:04.5678' hour to second(2);
187
SELECT interval '1 2.3456' minute to second(2);
188
SELECT interval '1 2:03.5678' minute to second(2);
189
SELECT interval '1 2:03:04.5678' minute to second(2);
191
-- test inputting and outputting SQL standard interval literals
192
SET IntervalStyle TO sql_standard;
193
SELECT interval '0' AS "zero",
194
interval '1-2' year to month AS "year-month",
195
interval '1 2:03:04' day to second AS "day-time",
196
- interval '1-2' AS "negative year-month",
197
- interval '1 2:03:04' AS "negative day-time";
199
-- test input of some not-quite-standard interval values in the sql style
200
SET IntervalStyle TO postgres;
201
SELECT interval '+1 -1:00:00',
202
interval '-1 +1:00:00',
203
interval '+1-2 -3 +4:05:06.789',
204
interval '-1-2 +3 -4:05:06.789';
206
-- test output of couple non-standard interval values in the sql style
207
SET IntervalStyle TO sql_standard;
208
SELECT interval '1 day -1 hours',
209
interval '-1 days +1 hours',
210
interval '1 years 2 months -3 days 4 hours 5 minutes 6.789 seconds',
211
- interval '1 years 2 months -3 days 4 hours 5 minutes 6.789 seconds';
213
-- test outputting iso8601 intervals
214
SET IntervalStyle to iso_8601;
215
select interval '0' AS "zero",
216
interval '1-2' AS "a year 2 months",
217
interval '1 2:03:04' AS "a bit over a day",
218
interval '2:03:04.45679' AS "a bit over 2 hours",
219
(interval '1-2' + interval '3 4:05:06.7') AS "all fields",
220
(interval '1-2' - interval '3 4:05:06.7') AS "mixed sign",
221
(- interval '1-2' + interval '3 4:05:06.7') AS "negative";
223
-- test inputting ISO 8601 4.4.2.1 "Format With Time Unit Designators"
224
SET IntervalStyle to sql_standard;
225
select interval 'P0Y' AS "zero",
226
interval 'P1Y2M' AS "a year 2 months",
227
interval 'P1W' AS "a week",
228
interval 'P1DT2H3M4S' AS "a bit over a day",
229
interval 'P1Y2M3DT4H5M6.7S' AS "all fields",
230
interval 'P-1Y-2M-3DT-4H-5M-6.7S' AS "negative",
231
interval 'PT-0.1S' AS "fractional second";
233
-- test inputting ISO 8601 4.4.2.2 "Alternative Format"
234
SET IntervalStyle to postgres;
235
select interval 'P00021015T103020' AS "ISO8601 Basic Format",
236
interval 'P0002-10-15T10:30:20' AS "ISO8601 Extended Format";
238
-- Make sure optional ISO8601 alternative format fields are optional.
239
select interval 'P0002' AS "year only",
240
interval 'P0002-10' AS "year month",
241
interval 'P0002-10-15' AS "year month day",
242
interval 'P0002T1S' AS "year only plus time",
243
interval 'P0002-10T1S' AS "year month plus time",
244
interval 'P0002-10-15T1S' AS "year month day plus time",
245
interval 'PT10' AS "hour only",
246
interval 'PT10:30' AS "hour minute";
248
-- test a couple rounding cases that changed since 8.3 w/ HAVE_INT64_TIMESTAMP.
249
SET IntervalStyle to postgres_verbose;
250
select interval '-10 mons -3 days +03:55:06.70';
251
select interval '1 year 2 mons 3 days 04:05:06.699999';
252
select interval '0:0:0.7', interval '@ 0.70 secs', interval '0.7 seconds';
254
-- check that '30 days' equals '1 month' according to the hash function
255
select '30 days'::interval = '1 month'::interval as t;
256
select interval_hash('30 days'::interval) = interval_hash('1 month'::interval) as t;