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78b674ba35
aggregate seems uniquely fragile, because it's the only one with an agginitval that's at all likely to change in format.
224 lines
5.8 KiB
Plaintext
224 lines
5.8 KiB
Plaintext
--
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-- INTERVAL
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--
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SET DATESTYLE = DEFAULT;
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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
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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
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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
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(1 row)
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SELECT INTERVAL '-05' AS "Five hours";
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Five hours
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------------
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-05:00
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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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-21:57
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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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-21:57
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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 -11 days -10:46
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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: Bad interval external representation 'badly formatted interval'
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INSERT INTO INTERVAL_TBL (f1) VALUES ('@ 30 eons ago');
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ERROR: Bad interval external representation '@ 30 eons ago'
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-- test interval operators
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SELECT '' AS ten, INTERVAL_TBL.*;
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ten | f1
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-----+----------------
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| 00:01
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| 05:00
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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
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(10 rows)
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SELECT '' AS nine, 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
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| 05:00
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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
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(9 rows)
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SELECT '' AS three, 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
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| 05:00
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| -00:00:14
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(3 rows)
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SELECT '' AS three, 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
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| 05:00
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| -00:00:14
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(3 rows)
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SELECT '' AS one, 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, 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
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(5 rows)
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SELECT '' AS nine, 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
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| 05:00
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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
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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 | -00:00:14
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| 05:00 | -00:00:14
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| 05:00 | 00:01
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| 1 day 02:03:04 | -00:00:14
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| 1 day 02:03:04 | 00:01
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| 1 day 02:03:04 | 05:00
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| 10 days | -00:00:14
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| 10 days | 00:01
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| 10 days | 05:00
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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
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| 3 mons | 05:00
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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
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| 5 mons | 05:00
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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 | -00:00:14
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| 5 mons 12:00 | 00:01
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| 5 mons 12:00 | 05:00
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| 5 mons 12:00 | 1 day 02:03:04
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| 5 mons 12:00 | 10 days
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| 5 mons 12:00 | 3 mons
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| 5 mons 12:00 | 5 mons
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| 6 years | -00:00:14
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| 6 years | 00:01
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| 6 years | 05:00
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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
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| 34 years | -00:00:14
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| 34 years | 00:01
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| 34 years | 05:00
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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
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| 34 years | 6 years
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(45 rows)
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SET DATESTYLE = 'postgres';
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SELECT '' AS ten, 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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