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Fix up "Postgres-style" time interval representation when fields have

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mixed-signs. Previous effort left way too many minus signs, and was at
 least as broken as the one before that :(
Clean up "ISO-style" time interval representation to omit zero fields if
 there is at least one non-zero field. Supress some leading plus signs
 when not necessary for clarity.
Replace every #ifdef __CYGWIN__ block with a cleaner TIMEZONE_GLOBAL macro
 defined in datetime.h.
This commit is contained in:
Thomas G. Lockhart
2001-01-18 07:22:43 +00:00
parent 6439de1752
commit 6acdebbd3a
6 changed files with 146 additions and 160 deletions
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196
src/test/regress/expected/interval.out
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@ -6,13 +6,13 @@ SET DATESTYLE = DEFAULT;
SELECT INTERVAL '01:00' AS "One hour";
One hour
----------
+01:00
01:00
(1 row)
SELECT INTERVAL '+02:00' AS "Two hours";
Two hours
-----------
+02:00
02:00
(1 row)
SELECT INTERVAL '-08:00' AS "Eight hours";
@ -40,9 +40,9 @@ SELECT INTERVAL '-1 days +02:03' AS "22 hours ago...";
(1 row)
SELECT INTERVAL '10 years -11 month -12 days +13:14' AS "9 years...";
9 years...
--------------------------
9 years 1 mon -11 -10:46
9 years...
-------------------------------
9 years 1 mon -11 days -10:46
(1 row)
CREATE TABLE INTERVAL_TBL (f1 interval);
@ -63,41 +63,41 @@ INSERT INTO INTERVAL_TBL (f1) VALUES ('@ 30 eons ago');
ERROR: Bad interval external representation '@ 30 eons ago'
-- test interval operators
SELECT '' AS ten, INTERVAL_TBL.*;
ten | f1
-----+-----------------
| +00:01
| +05:00
| 10 +00:00
| 34 years +00:00
| 3 mons +00:00
ten | f1
-----+----------------
| 00:01
| 05:00
| 10 days
| 34 years
| 3 mons
| -00:00:14
| 1 +02:03:04
| 6 years +00:00
| 5 mons +00:00
| 5 mons +12:00
| 1 day 02:03:04
| 6 years
| 5 mons
| 5 mons 12:00
(10 rows)
SELECT '' AS nine, INTERVAL_TBL.*
WHERE INTERVAL_TBL.f1 <> interval '@ 10 days';
nine | f1
------+-----------------
| +00:01
| +05:00
| 34 years +00:00
| 3 mons +00:00
nine | f1
------+----------------
| 00:01
| 05:00
| 34 years
| 3 mons
| -00:00:14
| 1 +02:03:04
| 6 years +00:00
| 5 mons +00:00
| 5 mons +12:00
| 1 day 02:03:04
| 6 years
| 5 mons
| 5 mons 12:00
(9 rows)
SELECT '' AS three, INTERVAL_TBL.*
WHERE INTERVAL_TBL.f1 <= interval '@ 5 hours';
three | f1
-------+-----------
| +00:01
| +05:00
| 00:01
| 05:00
| -00:00:14
(3 rows)
@ -105,95 +105,95 @@ SELECT '' AS three, INTERVAL_TBL.*
WHERE INTERVAL_TBL.f1 < interval '@ 1 day';
three | f1
-------+-----------
| +00:01
| +05:00
| 00:01
| 05:00
| -00:00:14
(3 rows)
SELECT '' AS one, INTERVAL_TBL.*
WHERE INTERVAL_TBL.f1 = interval '@ 34 years';
one | f1
-----+-----------------
| 34 years +00:00
one | f1
-----+----------
| 34 years
(1 row)
SELECT '' AS five, INTERVAL_TBL.*
WHERE INTERVAL_TBL.f1 >= interval '@ 1 month';
five | f1
------+-----------------
| 34 years +00:00
| 3 mons +00:00
| 6 years +00:00
| 5 mons +00:00
| 5 mons +12:00
five | f1
------+--------------
| 34 years
| 3 mons
| 6 years
| 5 mons
| 5 mons 12:00
(5 rows)
SELECT '' AS nine, INTERVAL_TBL.*
WHERE INTERVAL_TBL.f1 > interval '@ 3 seconds ago';
nine | f1
------+-----------------
| +00:01
| +05:00
| 10 +00:00
| 34 years +00:00
| 3 mons +00:00
| 1 +02:03:04
| 6 years +00:00
| 5 mons +00:00
| 5 mons +12:00
nine | f1
------+----------------
| 00:01
| 05:00
| 10 days
| 34 years
| 3 mons
| 1 day 02:03:04
| 6 years
| 5 mons
| 5 mons 12:00
(9 rows)
SELECT '' AS fortyfive, r1.*, r2.*
FROM INTERVAL_TBL r1, INTERVAL_TBL r2
WHERE r1.f1 > r2.f1
ORDER BY r1.f1, r2.f1;
fortyfive | f1 | f1
-----------+-----------------+----------------
| +00:01 | -00:00:14
| +05:00 | -00:00:14
| +05:00 | +00:01
| 1 +02:03:04 | -00:00:14
| 1 +02:03:04 | +00:01
| 1 +02:03:04 | +05:00
| 10 +00:00 | -00:00:14
| 10 +00:00 | +00:01
| 10 +00:00 | +05:00
| 10 +00:00 | 1 +02:03:04
| 3 mons +00:00 | -00:00:14
| 3 mons +00:00 | +00:01
| 3 mons +00:00 | +05:00
| 3 mons +00:00 | 1 +02:03:04
| 3 mons +00:00 | 10 +00:00
| 5 mons +00:00 | -00:00:14
| 5 mons +00:00 | +00:01
| 5 mons +00:00 | +05:00
| 5 mons +00:00 | 1 +02:03:04
| 5 mons +00:00 | 10 +00:00
| 5 mons +00:00 | 3 mons +00:00
| 5 mons +12:00 | -00:00:14
| 5 mons +12:00 | +00:01
| 5 mons +12:00 | +05:00
| 5 mons +12:00 | 1 +02:03:04
| 5 mons +12:00 | 10 +00:00
| 5 mons +12:00 | 3 mons +00:00
| 5 mons +12:00 | 5 mons +00:00
| 6 years +00:00 | -00:00:14
| 6 years +00:00 | +00:01
| 6 years +00:00 | +05:00
| 6 years +00:00 | 1 +02:03:04
| 6 years +00:00 | 10 +00:00
| 6 years +00:00 | 3 mons +00:00
| 6 years +00:00 | 5 mons +00:00
| 6 years +00:00 | 5 mons +12:00
| 34 years +00:00 | -00:00:14
| 34 years +00:00 | +00:01
| 34 years +00:00 | +05:00
| 34 years +00:00 | 1 +02:03:04
| 34 years +00:00 | 10 +00:00
| 34 years +00:00 | 3 mons +00:00
| 34 years +00:00 | 5 mons +00:00
| 34 years +00:00 | 5 mons +12:00
| 34 years +00:00 | 6 years +00:00
fortyfive | f1 | f1
-----------+----------------+----------------
| 00:01 | -00:00:14
| 05:00 | -00:00:14
| 05:00 | 00:01
| 1 day 02:03:04 | -00:00:14
| 1 day 02:03:04 | 00:01
| 1 day 02:03:04 | 05:00
| 10 days | -00:00:14
| 10 days | 00:01
| 10 days | 05:00
| 10 days | 1 day 02:03:04
| 3 mons | -00:00:14
| 3 mons | 00:01
| 3 mons | 05:00
| 3 mons | 1 day 02:03:04
| 3 mons | 10 days
| 5 mons | -00:00:14
| 5 mons | 00:01
| 5 mons | 05:00
| 5 mons | 1 day 02:03:04
| 5 mons | 10 days
| 5 mons | 3 mons
| 5 mons 12:00 | -00:00:14
| 5 mons 12:00 | 00:01
| 5 mons 12:00 | 05:00
| 5 mons 12:00 | 1 day 02:03:04
| 5 mons 12:00 | 10 days
| 5 mons 12:00 | 3 mons
| 5 mons 12:00 | 5 mons
| 6 years | -00:00:14
| 6 years | 00:01
| 6 years | 05:00
| 6 years | 1 day 02:03:04
| 6 years | 10 days
| 6 years | 3 mons
| 6 years | 5 mons
| 6 years | 5 mons 12:00
| 34 years | -00:00:14
| 34 years | 00:01
| 34 years | 05:00
| 34 years | 1 day 02:03:04
| 34 years | 10 days
| 34 years | 3 mons
| 34 years | 5 mons
| 34 years | 5 mons 12:00
| 34 years | 6 years
(45 rows)
SET DATESTYLE = 'postgres';