933 lines
29 KiB
Plaintext
933 lines
29 KiB
Plaintext
--
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-- INTERVAL
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--
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SET DATESTYLE = 'ISO';
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SET IntervalStyle to postgres;
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-- check acceptance of "time zone style"
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SELECT INTERVAL '01:00' AS "One hour";
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One hour
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----------
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01:00:00
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(1 row)
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SELECT INTERVAL '+02:00' AS "Two hours";
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Two hours
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-----------
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02:00:00
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(1 row)
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SELECT INTERVAL '-08:00' AS "Eight hours";
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Eight hours
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-------------
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-08:00:00
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(1 row)
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SELECT INTERVAL '-1 +02:03' AS "22 hours ago...";
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22 hours ago...
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-------------------
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-1 days +02:03:00
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(1 row)
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SELECT INTERVAL '-1 days +02:03' AS "22 hours ago...";
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22 hours ago...
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-------------------
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-1 days +02:03:00
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(1 row)
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SELECT INTERVAL '1.5 weeks' AS "Ten days twelve hours";
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Ten days twelve hours
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-----------------------
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10 days 12:00:00
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(1 row)
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SELECT INTERVAL '1.5 months' AS "One month 15 days";
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One month 15 days
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-------------------
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1 mon 15 days
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(1 row)
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SELECT INTERVAL '10 years -11 month -12 days +13:14' AS "9 years...";
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9 years...
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----------------------------------
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9 years 1 mon -12 days +13:14:00
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(1 row)
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CREATE TABLE INTERVAL_TBL (f1 interval);
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INSERT INTO INTERVAL_TBL (f1) VALUES ('@ 1 minute');
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INSERT INTO INTERVAL_TBL (f1) VALUES ('@ 5 hour');
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INSERT INTO INTERVAL_TBL (f1) VALUES ('@ 10 day');
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INSERT INTO INTERVAL_TBL (f1) VALUES ('@ 34 year');
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INSERT INTO INTERVAL_TBL (f1) VALUES ('@ 3 months');
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INSERT INTO INTERVAL_TBL (f1) VALUES ('@ 14 seconds ago');
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INSERT INTO INTERVAL_TBL (f1) VALUES ('1 day 2 hours 3 minutes 4 seconds');
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INSERT INTO INTERVAL_TBL (f1) VALUES ('6 years');
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INSERT INTO INTERVAL_TBL (f1) VALUES ('5 months');
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INSERT INTO INTERVAL_TBL (f1) VALUES ('5 months 12 hours');
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-- badly formatted interval
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INSERT INTO INTERVAL_TBL (f1) VALUES ('badly formatted interval');
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ERROR: invalid input syntax for type interval: "badly formatted interval"
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LINE 1: INSERT INTO INTERVAL_TBL (f1) VALUES ('badly formatted inter...
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^
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INSERT INTO INTERVAL_TBL (f1) VALUES ('@ 30 eons ago');
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ERROR: invalid input syntax for type interval: "@ 30 eons ago"
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LINE 1: INSERT INTO INTERVAL_TBL (f1) VALUES ('@ 30 eons ago');
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^
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-- test interval operators
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SELECT '' AS ten, * FROM INTERVAL_TBL;
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ten | f1
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-----+-----------------
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| 00:01:00
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| 05:00:00
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| 10 days
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| 34 years
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| 3 mons
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| -00:00:14
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| 1 day 02:03:04
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| 6 years
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| 5 mons
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| 5 mons 12:00:00
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(10 rows)
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SELECT '' AS nine, * FROM INTERVAL_TBL
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WHERE INTERVAL_TBL.f1 <> interval '@ 10 days';
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nine | f1
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------+-----------------
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| 00:01:00
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| 05:00:00
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| 34 years
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| 3 mons
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| -00:00:14
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| 1 day 02:03:04
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| 6 years
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| 5 mons
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| 5 mons 12:00:00
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(9 rows)
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SELECT '' AS three, * FROM INTERVAL_TBL
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WHERE INTERVAL_TBL.f1 <= interval '@ 5 hours';
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three | f1
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-------+-----------
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| 00:01:00
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| 05:00:00
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| -00:00:14
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(3 rows)
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SELECT '' AS three, * FROM INTERVAL_TBL
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WHERE INTERVAL_TBL.f1 < interval '@ 1 day';
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three | f1
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-------+-----------
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| 00:01:00
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| 05:00:00
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| -00:00:14
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(3 rows)
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SELECT '' AS one, * FROM INTERVAL_TBL
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WHERE INTERVAL_TBL.f1 = interval '@ 34 years';
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one | f1
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-----+----------
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| 34 years
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(1 row)
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SELECT '' AS five, * FROM INTERVAL_TBL
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WHERE INTERVAL_TBL.f1 >= interval '@ 1 month';
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five | f1
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------+-----------------
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| 34 years
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| 3 mons
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| 6 years
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| 5 mons
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| 5 mons 12:00:00
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(5 rows)
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SELECT '' AS nine, * FROM INTERVAL_TBL
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WHERE INTERVAL_TBL.f1 > interval '@ 3 seconds ago';
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nine | f1
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------+-----------------
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| 00:01:00
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| 05:00:00
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| 10 days
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| 34 years
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| 3 mons
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| 1 day 02:03:04
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| 6 years
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| 5 mons
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| 5 mons 12:00:00
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(9 rows)
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SELECT '' AS fortyfive, r1.*, r2.*
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FROM INTERVAL_TBL r1, INTERVAL_TBL r2
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WHERE r1.f1 > r2.f1
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ORDER BY r1.f1, r2.f1;
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fortyfive | f1 | f1
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-----------+-----------------+-----------------
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| 00:01:00 | -00:00:14
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| 05:00:00 | -00:00:14
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| 05:00:00 | 00:01:00
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| 1 day 02:03:04 | -00:00:14
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| 1 day 02:03:04 | 00:01:00
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| 1 day 02:03:04 | 05:00:00
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| 10 days | -00:00:14
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| 10 days | 00:01:00
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| 10 days | 05:00:00
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| 10 days | 1 day 02:03:04
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| 3 mons | -00:00:14
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| 3 mons | 00:01:00
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| 3 mons | 05:00:00
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| 3 mons | 1 day 02:03:04
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| 3 mons | 10 days
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| 5 mons | -00:00:14
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| 5 mons | 00:01:00
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| 5 mons | 05:00:00
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| 5 mons | 1 day 02:03:04
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| 5 mons | 10 days
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| 5 mons | 3 mons
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| 5 mons 12:00:00 | -00:00:14
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| 5 mons 12:00:00 | 00:01:00
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| 5 mons 12:00:00 | 05:00:00
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| 5 mons 12:00:00 | 1 day 02:03:04
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| 5 mons 12:00:00 | 10 days
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| 5 mons 12:00:00 | 3 mons
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| 5 mons 12:00:00 | 5 mons
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| 6 years | -00:00:14
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| 6 years | 00:01:00
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| 6 years | 05:00:00
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| 6 years | 1 day 02:03:04
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| 6 years | 10 days
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| 6 years | 3 mons
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| 6 years | 5 mons
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| 6 years | 5 mons 12:00:00
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| 34 years | -00:00:14
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| 34 years | 00:01:00
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| 34 years | 05:00:00
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| 34 years | 1 day 02:03:04
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| 34 years | 10 days
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| 34 years | 3 mons
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| 34 years | 5 mons
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| 34 years | 5 mons 12:00:00
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| 34 years | 6 years
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(45 rows)
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-- Test intervals that are large enough to overflow 64 bits in comparisons
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CREATE TEMP TABLE INTERVAL_TBL_OF (f1 interval);
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INSERT INTO INTERVAL_TBL_OF (f1) VALUES
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('2147483647 days 2147483647 months'),
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('2147483647 days -2147483648 months'),
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('1 year'),
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('-2147483648 days 2147483647 months'),
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('-2147483648 days -2147483648 months');
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-- these should fail as out-of-range
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INSERT INTO INTERVAL_TBL_OF (f1) VALUES ('2147483648 days');
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ERROR: interval field value out of range: "2147483648 days"
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LINE 1: INSERT INTO INTERVAL_TBL_OF (f1) VALUES ('2147483648 days');
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^
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INSERT INTO INTERVAL_TBL_OF (f1) VALUES ('-2147483649 days');
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ERROR: interval field value out of range: "-2147483649 days"
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LINE 1: INSERT INTO INTERVAL_TBL_OF (f1) VALUES ('-2147483649 days')...
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^
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INSERT INTO INTERVAL_TBL_OF (f1) VALUES ('2147483647 years');
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ERROR: interval out of range
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LINE 1: INSERT INTO INTERVAL_TBL_OF (f1) VALUES ('2147483647 years')...
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^
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INSERT INTO INTERVAL_TBL_OF (f1) VALUES ('-2147483648 years');
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ERROR: interval out of range
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LINE 1: INSERT INTO INTERVAL_TBL_OF (f1) VALUES ('-2147483648 years'...
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^
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-- Test edge-case overflow detection in interval multiplication
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select extract(epoch from '256 microseconds'::interval * (2^55)::float8);
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ERROR: interval out of range
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SELECT r1.*, r2.*
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FROM INTERVAL_TBL_OF r1, INTERVAL_TBL_OF r2
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WHERE r1.f1 > r2.f1
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ORDER BY r1.f1, r2.f1;
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f1 | f1
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-------------------------------------------+-------------------------------------------
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-178956970 years -8 mons +2147483647 days | -178956970 years -8 mons -2147483648 days
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1 year | -178956970 years -8 mons -2147483648 days
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1 year | -178956970 years -8 mons +2147483647 days
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178956970 years 7 mons -2147483648 days | -178956970 years -8 mons -2147483648 days
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178956970 years 7 mons -2147483648 days | -178956970 years -8 mons +2147483647 days
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178956970 years 7 mons -2147483648 days | 1 year
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178956970 years 7 mons 2147483647 days | -178956970 years -8 mons -2147483648 days
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178956970 years 7 mons 2147483647 days | -178956970 years -8 mons +2147483647 days
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178956970 years 7 mons 2147483647 days | 1 year
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178956970 years 7 mons 2147483647 days | 178956970 years 7 mons -2147483648 days
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(10 rows)
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CREATE INDEX ON INTERVAL_TBL_OF USING btree (f1);
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SET enable_seqscan TO false;
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EXPLAIN (COSTS OFF)
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SELECT f1 FROM INTERVAL_TBL_OF r1 ORDER BY f1;
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QUERY PLAN
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--------------------------------------------------------------------
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Index Only Scan using interval_tbl_of_f1_idx on interval_tbl_of r1
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(1 row)
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SELECT f1 FROM INTERVAL_TBL_OF r1 ORDER BY f1;
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f1
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-------------------------------------------
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-178956970 years -8 mons -2147483648 days
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-178956970 years -8 mons +2147483647 days
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1 year
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178956970 years 7 mons -2147483648 days
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178956970 years 7 mons 2147483647 days
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(5 rows)
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RESET enable_seqscan;
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DROP TABLE INTERVAL_TBL_OF;
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-- Test multiplication and division with intervals.
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-- Floating point arithmetic rounding errors can lead to unexpected results,
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-- though the code attempts to do the right thing and round up to days and
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-- minutes to avoid results such as '3 days 24:00 hours' or '14:20:60'.
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-- Note that it is expected for some day components to be greater than 29 and
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-- some time components be greater than 23:59:59 due to how intervals are
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-- stored internally.
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CREATE TABLE INTERVAL_MULDIV_TBL (span interval);
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COPY INTERVAL_MULDIV_TBL FROM STDIN;
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SELECT span * 0.3 AS product
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FROM INTERVAL_MULDIV_TBL;
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product
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------------------------------------
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1 year 12 days 122:24:00
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-1 years -12 days +93:36:00
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-3 days -14:24:00
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2 mons 13 days 01:22:28.8
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-10 mons +120 days 37:28:21.6567
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1 mon 6 days
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4 mons 6 days
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24 years 11 mons 320 days 16:48:00
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(8 rows)
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SELECT span * 8.2 AS product
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FROM INTERVAL_MULDIV_TBL;
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product
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---------------------------------------------
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28 years 104 days 2961:36:00
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-28 years -104 days +2942:24:00
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-98 days -09:36:00
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6 years 1 mon -197 days +93:34:27.2
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-24 years -7 mons +3946 days 640:15:11.9498
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2 years 8 mons 24 days
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9 years 6 mons 24 days
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682 years 7 mons 8215 days 19:12:00
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(8 rows)
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SELECT span / 10 AS quotient
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FROM INTERVAL_MULDIV_TBL;
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quotient
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----------------------------------
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4 mons 4 days 40:48:00
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-4 mons -4 days +31:12:00
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-1 days -04:48:00
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25 days -15:32:30.4
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-3 mons +30 days 12:29:27.2189
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12 days
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1 mon 12 days
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8 years 3 mons 126 days 21:36:00
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(8 rows)
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SELECT span / 100 AS quotient
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FROM INTERVAL_MULDIV_TBL;
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quotient
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-------------------------
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12 days 13:40:48
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-12 days -06:28:48
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-02:52:48
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2 days 10:26:44.96
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-6 days +01:14:56.72189
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1 day 04:48:00
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4 days 04:48:00
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9 mons 39 days 16:33:36
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(8 rows)
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DROP TABLE INTERVAL_MULDIV_TBL;
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SET DATESTYLE = 'postgres';
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SET IntervalStyle to postgres_verbose;
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SELECT '' AS ten, * FROM INTERVAL_TBL;
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ten | f1
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-----+-------------------------------
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| @ 1 min
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| @ 5 hours
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| @ 10 days
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| @ 34 years
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| @ 3 mons
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| @ 14 secs ago
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| @ 1 day 2 hours 3 mins 4 secs
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| @ 6 years
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| @ 5 mons
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| @ 5 mons 12 hours
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(10 rows)
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-- test avg(interval), which is somewhat fragile since people have been
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-- known to change the allowed input syntax for type interval without
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-- updating pg_aggregate.agginitval
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select avg(f1) from interval_tbl;
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avg
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-------------------------------------------------
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@ 4 years 1 mon 10 days 4 hours 18 mins 23 secs
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(1 row)
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-- test long interval input
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select '4 millenniums 5 centuries 4 decades 1 year 4 months 4 days 17 minutes 31 seconds'::interval;
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interval
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--------------------------------------------
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@ 4541 years 4 mons 4 days 17 mins 31 secs
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(1 row)
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-- test long interval output
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-- Note: the actual maximum length of the interval output is longer,
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-- but we need the test to work for both integer and floating-point
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-- timestamps.
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select '100000000y 10mon -1000000000d -100000h -10min -10.000001s ago'::interval;
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interval
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---------------------------------------------------------------------------------------
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@ 100000000 years 10 mons -1000000000 days -100000 hours -10 mins -10.000001 secs ago
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(1 row)
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-- test justify_hours() and justify_days()
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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";
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6 mons 5 days 4 hours 3 mins 2 seconds
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----------------------------------------
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@ 6 mons 5 days 4 hours 3 mins 2 secs
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(1 row)
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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";
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7 mons 6 days 5 hours 4 mins 3 seconds
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----------------------------------------
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@ 7 mons 6 days 5 hours 4 mins 3 secs
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(1 row)
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-- test justify_interval()
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SELECT justify_interval(interval '1 month -1 hour') as "1 month -1 hour";
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1 month -1 hour
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--------------------
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@ 29 days 23 hours
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(1 row)
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-- test fractional second input, and detection of duplicate units
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SET DATESTYLE = 'ISO';
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SET IntervalStyle TO postgres;
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SELECT '1 millisecond'::interval, '1 microsecond'::interval,
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'500 seconds 99 milliseconds 51 microseconds'::interval;
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interval | interval | interval
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--------------+-----------------+-----------------
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00:00:00.001 | 00:00:00.000001 | 00:08:20.099051
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(1 row)
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SELECT '3 days 5 milliseconds'::interval;
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interval
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---------------------
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3 days 00:00:00.005
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(1 row)
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SELECT '1 second 2 seconds'::interval; -- error
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ERROR: invalid input syntax for type interval: "1 second 2 seconds"
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LINE 1: SELECT '1 second 2 seconds'::interval;
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^
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SELECT '10 milliseconds 20 milliseconds'::interval; -- error
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ERROR: invalid input syntax for type interval: "10 milliseconds 20 milliseconds"
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LINE 1: SELECT '10 milliseconds 20 milliseconds'::interval;
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^
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SELECT '5.5 seconds 3 milliseconds'::interval; -- error
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ERROR: invalid input syntax for type interval: "5.5 seconds 3 milliseconds"
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LINE 1: SELECT '5.5 seconds 3 milliseconds'::interval;
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^
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SELECT '1:20:05 5 microseconds'::interval; -- error
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ERROR: invalid input syntax for type interval: "1:20:05 5 microseconds"
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LINE 1: SELECT '1:20:05 5 microseconds'::interval;
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^
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SELECT '1 day 1 day'::interval; -- error
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ERROR: invalid input syntax for type interval: "1 day 1 day"
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LINE 1: SELECT '1 day 1 day'::interval;
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^
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SELECT interval '1-2'; -- SQL year-month literal
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interval
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---------------
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1 year 2 mons
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(1 row)
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SELECT interval '999' second; -- oversize leading field is ok
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interval
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----------
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00:16:39
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(1 row)
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SELECT interval '999' minute;
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interval
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----------
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16:39:00
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(1 row)
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SELECT interval '999' hour;
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interval
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-----------
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999:00:00
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(1 row)
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SELECT interval '999' day;
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interval
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----------
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999 days
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(1 row)
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SELECT interval '999' month;
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interval
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-----------------
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83 years 3 mons
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(1 row)
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-- test SQL-spec syntaxes for restricted field sets
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SELECT interval '1' year;
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interval
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----------
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1 year
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(1 row)
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SELECT interval '2' month;
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interval
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----------
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2 mons
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(1 row)
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SELECT interval '3' day;
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interval
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----------
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3 days
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(1 row)
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SELECT interval '4' hour;
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interval
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----------
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04:00:00
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(1 row)
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SELECT interval '5' minute;
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interval
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----------
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00:05:00
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(1 row)
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SELECT interval '6' second;
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interval
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----------
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00:00:06
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(1 row)
|
|
|
|
SELECT interval '1' year to month;
|
|
interval
|
|
----------
|
|
1 mon
|
|
(1 row)
|
|
|
|
SELECT interval '1-2' year to month;
|
|
interval
|
|
---------------
|
|
1 year 2 mons
|
|
(1 row)
|
|
|
|
SELECT interval '1 2' day to hour;
|
|
interval
|
|
----------------
|
|
1 day 02:00:00
|
|
(1 row)
|
|
|
|
SELECT interval '1 2:03' day to hour;
|
|
interval
|
|
----------------
|
|
1 day 02:00:00
|
|
(1 row)
|
|
|
|
SELECT interval '1 2:03:04' day to hour;
|
|
interval
|
|
----------------
|
|
1 day 02:00:00
|
|
(1 row)
|
|
|
|
SELECT interval '1 2' day to minute;
|
|
ERROR: invalid input syntax for type interval: "1 2"
|
|
LINE 1: SELECT interval '1 2' day to minute;
|
|
^
|
|
SELECT interval '1 2:03' day to minute;
|
|
interval
|
|
----------------
|
|
1 day 02:03:00
|
|
(1 row)
|
|
|
|
SELECT interval '1 2:03:04' day to minute;
|
|
interval
|
|
----------------
|
|
1 day 02:03:00
|
|
(1 row)
|
|
|
|
SELECT interval '1 2' day to second;
|
|
ERROR: invalid input syntax for type interval: "1 2"
|
|
LINE 1: SELECT interval '1 2' day to second;
|
|
^
|
|
SELECT interval '1 2:03' day to second;
|
|
interval
|
|
----------------
|
|
1 day 02:03:00
|
|
(1 row)
|
|
|
|
SELECT interval '1 2:03:04' day to second;
|
|
interval
|
|
----------------
|
|
1 day 02:03:04
|
|
(1 row)
|
|
|
|
SELECT interval '1 2' hour to minute;
|
|
ERROR: invalid input syntax for type interval: "1 2"
|
|
LINE 1: SELECT interval '1 2' hour to minute;
|
|
^
|
|
SELECT interval '1 2:03' hour to minute;
|
|
interval
|
|
----------------
|
|
1 day 02:03:00
|
|
(1 row)
|
|
|
|
SELECT interval '1 2:03:04' hour to minute;
|
|
interval
|
|
----------------
|
|
1 day 02:03:00
|
|
(1 row)
|
|
|
|
SELECT interval '1 2' hour to second;
|
|
ERROR: invalid input syntax for type interval: "1 2"
|
|
LINE 1: SELECT interval '1 2' hour to second;
|
|
^
|
|
SELECT interval '1 2:03' hour to second;
|
|
interval
|
|
----------------
|
|
1 day 02:03:00
|
|
(1 row)
|
|
|
|
SELECT interval '1 2:03:04' hour to second;
|
|
interval
|
|
----------------
|
|
1 day 02:03:04
|
|
(1 row)
|
|
|
|
SELECT interval '1 2' minute to second;
|
|
ERROR: invalid input syntax for type interval: "1 2"
|
|
LINE 1: SELECT interval '1 2' minute to second;
|
|
^
|
|
SELECT interval '1 2:03' minute to second;
|
|
interval
|
|
----------------
|
|
1 day 00:02:03
|
|
(1 row)
|
|
|
|
SELECT interval '1 2:03:04' minute to second;
|
|
interval
|
|
----------------
|
|
1 day 02:03:04
|
|
(1 row)
|
|
|
|
SELECT interval '1 +2:03' minute to second;
|
|
interval
|
|
----------------
|
|
1 day 00:02:03
|
|
(1 row)
|
|
|
|
SELECT interval '1 +2:03:04' minute to second;
|
|
interval
|
|
----------------
|
|
1 day 02:03:04
|
|
(1 row)
|
|
|
|
SELECT interval '1 -2:03' minute to second;
|
|
interval
|
|
-----------------
|
|
1 day -00:02:03
|
|
(1 row)
|
|
|
|
SELECT interval '1 -2:03:04' minute to second;
|
|
interval
|
|
-----------------
|
|
1 day -02:03:04
|
|
(1 row)
|
|
|
|
SELECT interval '123 11' day to hour; -- ok
|
|
interval
|
|
-------------------
|
|
123 days 11:00:00
|
|
(1 row)
|
|
|
|
SELECT interval '123 11' day; -- not ok
|
|
ERROR: invalid input syntax for type interval: "123 11"
|
|
LINE 1: SELECT interval '123 11' day;
|
|
^
|
|
SELECT interval '123 11'; -- not ok, too ambiguous
|
|
ERROR: invalid input syntax for type interval: "123 11"
|
|
LINE 1: SELECT interval '123 11';
|
|
^
|
|
SELECT interval '123 2:03 -2:04'; -- not ok, redundant hh:mm fields
|
|
ERROR: invalid input syntax for type interval: "123 2:03 -2:04"
|
|
LINE 1: SELECT interval '123 2:03 -2:04';
|
|
^
|
|
-- test syntaxes for restricted precision
|
|
SELECT interval(0) '1 day 01:23:45.6789';
|
|
interval
|
|
----------------
|
|
1 day 01:23:46
|
|
(1 row)
|
|
|
|
SELECT interval(2) '1 day 01:23:45.6789';
|
|
interval
|
|
-------------------
|
|
1 day 01:23:45.68
|
|
(1 row)
|
|
|
|
SELECT interval '12:34.5678' minute to second(2); -- per SQL spec
|
|
interval
|
|
-------------
|
|
00:12:34.57
|
|
(1 row)
|
|
|
|
SELECT interval '1.234' second;
|
|
interval
|
|
--------------
|
|
00:00:01.234
|
|
(1 row)
|
|
|
|
SELECT interval '1.234' second(2);
|
|
interval
|
|
-------------
|
|
00:00:01.23
|
|
(1 row)
|
|
|
|
SELECT interval '1 2.345' day to second(2);
|
|
ERROR: invalid input syntax for type interval: "1 2.345"
|
|
LINE 1: SELECT interval '1 2.345' day to second(2);
|
|
^
|
|
SELECT interval '1 2:03' day to second(2);
|
|
interval
|
|
----------------
|
|
1 day 02:03:00
|
|
(1 row)
|
|
|
|
SELECT interval '1 2:03.4567' day to second(2);
|
|
interval
|
|
-------------------
|
|
1 day 00:02:03.46
|
|
(1 row)
|
|
|
|
SELECT interval '1 2:03:04.5678' day to second(2);
|
|
interval
|
|
-------------------
|
|
1 day 02:03:04.57
|
|
(1 row)
|
|
|
|
SELECT interval '1 2.345' hour to second(2);
|
|
ERROR: invalid input syntax for type interval: "1 2.345"
|
|
LINE 1: SELECT interval '1 2.345' hour to second(2);
|
|
^
|
|
SELECT interval '1 2:03.45678' hour to second(2);
|
|
interval
|
|
-------------------
|
|
1 day 00:02:03.46
|
|
(1 row)
|
|
|
|
SELECT interval '1 2:03:04.5678' hour to second(2);
|
|
interval
|
|
-------------------
|
|
1 day 02:03:04.57
|
|
(1 row)
|
|
|
|
SELECT interval '1 2.3456' minute to second(2);
|
|
ERROR: invalid input syntax for type interval: "1 2.3456"
|
|
LINE 1: SELECT interval '1 2.3456' minute to second(2);
|
|
^
|
|
SELECT interval '1 2:03.5678' minute to second(2);
|
|
interval
|
|
-------------------
|
|
1 day 00:02:03.57
|
|
(1 row)
|
|
|
|
SELECT interval '1 2:03:04.5678' minute to second(2);
|
|
interval
|
|
-------------------
|
|
1 day 02:03:04.57
|
|
(1 row)
|
|
|
|
-- test casting to restricted precision (bug #14479)
|
|
SELECT f1, f1::INTERVAL DAY TO MINUTE AS "minutes",
|
|
(f1 + INTERVAL '1 month')::INTERVAL MONTH::INTERVAL YEAR AS "years"
|
|
FROM interval_tbl;
|
|
f1 | minutes | years
|
|
-----------------+-----------------+----------
|
|
00:01:00 | 00:01:00 | 00:00:00
|
|
05:00:00 | 05:00:00 | 00:00:00
|
|
10 days | 10 days | 00:00:00
|
|
34 years | 34 years | 34 years
|
|
3 mons | 3 mons | 00:00:00
|
|
-00:00:14 | 00:00:00 | 00:00:00
|
|
1 day 02:03:04 | 1 day 02:03:00 | 00:00:00
|
|
6 years | 6 years | 6 years
|
|
5 mons | 5 mons | 00:00:00
|
|
5 mons 12:00:00 | 5 mons 12:00:00 | 00:00:00
|
|
(10 rows)
|
|
|
|
-- test inputting and outputting SQL standard interval literals
|
|
SET IntervalStyle TO sql_standard;
|
|
SELECT interval '0' AS "zero",
|
|
interval '1-2' year to month AS "year-month",
|
|
interval '1 2:03:04' day to second AS "day-time",
|
|
- interval '1-2' AS "negative year-month",
|
|
- interval '1 2:03:04' AS "negative day-time";
|
|
zero | year-month | day-time | negative year-month | negative day-time
|
|
------+------------+-----------+---------------------+-------------------
|
|
0 | 1-2 | 1 2:03:04 | -1-2 | -1 2:03:04
|
|
(1 row)
|
|
|
|
-- test input of some not-quite-standard interval values in the sql style
|
|
SET IntervalStyle TO postgres;
|
|
SELECT interval '+1 -1:00:00',
|
|
interval '-1 +1:00:00',
|
|
interval '+1-2 -3 +4:05:06.789',
|
|
interval '-1-2 +3 -4:05:06.789';
|
|
interval | interval | interval | interval
|
|
-----------------+-------------------+-------------------------------------+----------------------------------------
|
|
1 day -01:00:00 | -1 days +01:00:00 | 1 year 2 mons -3 days +04:05:06.789 | -1 years -2 mons +3 days -04:05:06.789
|
|
(1 row)
|
|
|
|
-- test output of couple non-standard interval values in the sql style
|
|
SET IntervalStyle TO sql_standard;
|
|
SELECT interval '1 day -1 hours',
|
|
interval '-1 days +1 hours',
|
|
interval '1 years 2 months -3 days 4 hours 5 minutes 6.789 seconds',
|
|
- interval '1 years 2 months -3 days 4 hours 5 minutes 6.789 seconds';
|
|
interval | interval | interval | ?column?
|
|
------------------+------------------+----------------------+----------------------
|
|
+0-0 +1 -1:00:00 | +0-0 -1 +1:00:00 | +1-2 -3 +4:05:06.789 | -1-2 +3 -4:05:06.789
|
|
(1 row)
|
|
|
|
-- test outputting iso8601 intervals
|
|
SET IntervalStyle to iso_8601;
|
|
select interval '0' AS "zero",
|
|
interval '1-2' AS "a year 2 months",
|
|
interval '1 2:03:04' AS "a bit over a day",
|
|
interval '2:03:04.45679' AS "a bit over 2 hours",
|
|
(interval '1-2' + interval '3 4:05:06.7') AS "all fields",
|
|
(interval '1-2' - interval '3 4:05:06.7') AS "mixed sign",
|
|
(- interval '1-2' + interval '3 4:05:06.7') AS "negative";
|
|
zero | a year 2 months | a bit over a day | a bit over 2 hours | all fields | mixed sign | negative
|
|
------+-----------------+------------------+--------------------+------------------+----------------------+--------------------
|
|
PT0S | P1Y2M | P1DT2H3M4S | PT2H3M4.45679S | P1Y2M3DT4H5M6.7S | P1Y2M-3DT-4H-5M-6.7S | P-1Y-2M3DT4H5M6.7S
|
|
(1 row)
|
|
|
|
-- test inputting ISO 8601 4.4.2.1 "Format With Time Unit Designators"
|
|
SET IntervalStyle to sql_standard;
|
|
select interval 'P0Y' AS "zero",
|
|
interval 'P1Y2M' AS "a year 2 months",
|
|
interval 'P1W' AS "a week",
|
|
interval 'P1DT2H3M4S' AS "a bit over a day",
|
|
interval 'P1Y2M3DT4H5M6.7S' AS "all fields",
|
|
interval 'P-1Y-2M-3DT-4H-5M-6.7S' AS "negative",
|
|
interval 'PT-0.1S' AS "fractional second";
|
|
zero | a year 2 months | a week | a bit over a day | all fields | negative | fractional second
|
|
------+-----------------+-----------+------------------+--------------------+--------------------+-------------------
|
|
0 | 1-2 | 7 0:00:00 | 1 2:03:04 | +1-2 +3 +4:05:06.7 | -1-2 -3 -4:05:06.7 | -0:00:00.1
|
|
(1 row)
|
|
|
|
-- test inputting ISO 8601 4.4.2.2 "Alternative Format"
|
|
SET IntervalStyle to postgres;
|
|
select interval 'P00021015T103020' AS "ISO8601 Basic Format",
|
|
interval 'P0002-10-15T10:30:20' AS "ISO8601 Extended Format";
|
|
ISO8601 Basic Format | ISO8601 Extended Format
|
|
----------------------------------+----------------------------------
|
|
2 years 10 mons 15 days 10:30:20 | 2 years 10 mons 15 days 10:30:20
|
|
(1 row)
|
|
|
|
-- Make sure optional ISO8601 alternative format fields are optional.
|
|
select interval 'P0002' AS "year only",
|
|
interval 'P0002-10' AS "year month",
|
|
interval 'P0002-10-15' AS "year month day",
|
|
interval 'P0002T1S' AS "year only plus time",
|
|
interval 'P0002-10T1S' AS "year month plus time",
|
|
interval 'P0002-10-15T1S' AS "year month day plus time",
|
|
interval 'PT10' AS "hour only",
|
|
interval 'PT10:30' AS "hour minute";
|
|
year only | year month | year month day | year only plus time | year month plus time | year month day plus time | hour only | hour minute
|
|
-----------+-----------------+-------------------------+---------------------+--------------------------+----------------------------------+-----------+-------------
|
|
2 years | 2 years 10 mons | 2 years 10 mons 15 days | 2 years 00:00:01 | 2 years 10 mons 00:00:01 | 2 years 10 mons 15 days 00:00:01 | 10:00:00 | 10:30:00
|
|
(1 row)
|
|
|
|
-- test a couple rounding cases that changed since 8.3 w/ HAVE_INT64_TIMESTAMP.
|
|
SET IntervalStyle to postgres_verbose;
|
|
select interval '-10 mons -3 days +03:55:06.70';
|
|
interval
|
|
--------------------------------------------------
|
|
@ 10 mons 3 days -3 hours -55 mins -6.7 secs ago
|
|
(1 row)
|
|
|
|
select interval '1 year 2 mons 3 days 04:05:06.699999';
|
|
interval
|
|
-----------------------------------------------------
|
|
@ 1 year 2 mons 3 days 4 hours 5 mins 6.699999 secs
|
|
(1 row)
|
|
|
|
select interval '0:0:0.7', interval '@ 0.70 secs', interval '0.7 seconds';
|
|
interval | interval | interval
|
|
------------+------------+------------
|
|
@ 0.7 secs | @ 0.7 secs | @ 0.7 secs
|
|
(1 row)
|
|
|
|
-- check that '30 days' equals '1 month' according to the hash function
|
|
select '30 days'::interval = '1 month'::interval as t;
|
|
t
|
|
---
|
|
t
|
|
(1 row)
|
|
|
|
select interval_hash('30 days'::interval) = interval_hash('1 month'::interval) as t;
|
|
t
|
|
---
|
|
t
|
|
(1 row)
|
|
|
|
-- numeric constructor
|
|
select make_interval(years := 2);
|
|
make_interval
|
|
---------------
|
|
@ 2 years
|
|
(1 row)
|
|
|
|
select make_interval(years := 1, months := 6);
|
|
make_interval
|
|
-----------------
|
|
@ 1 year 6 mons
|
|
(1 row)
|
|
|
|
select make_interval(years := 1, months := -1, weeks := 5, days := -7, hours := 25, mins := -180);
|
|
make_interval
|
|
----------------------------
|
|
@ 11 mons 28 days 22 hours
|
|
(1 row)
|
|
|
|
select make_interval() = make_interval(years := 0, months := 0, weeks := 0, days := 0, mins := 0, secs := 0.0);
|
|
?column?
|
|
----------
|
|
t
|
|
(1 row)
|
|
|
|
select make_interval(hours := -2, mins := -10, secs := -25.3);
|
|
make_interval
|
|
---------------------------------
|
|
@ 2 hours 10 mins 25.3 secs ago
|
|
(1 row)
|
|
|
|
select make_interval(years := 'inf'::float::int);
|
|
ERROR: integer out of range
|
|
select make_interval(months := 'NaN'::float::int);
|
|
ERROR: integer out of range
|
|
select make_interval(secs := 'inf');
|
|
ERROR: interval out of range
|
|
select make_interval(secs := 'NaN');
|
|
ERROR: interval out of range
|
|
select make_interval(secs := 7e12);
|
|
make_interval
|
|
------------------------------------
|
|
@ 1944444444 hours 26 mins 40 secs
|
|
(1 row)
|
|
|