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|
--
-- TINTERVAL
--
CREATE TABLE TINTERVAL_TBL (f1 tinterval);
-- Should accept any abstime,
-- so do not bother with extensive testing of values
INSERT INTO TINTERVAL_TBL (f1)
VALUES ('["-infinity" "infinity"]');
INSERT INTO TINTERVAL_TBL (f1)
VALUES ('["May 10, 1947 23:59:12" "Jan 14, 1973 03:14:21"]');
INSERT INTO TINTERVAL_TBL (f1)
VALUES ('["Sep 4, 1983 23:59:12" "Oct 4, 1983 23:59:12"]');
INSERT INTO TINTERVAL_TBL (f1)
VALUES ('["epoch" "Mon May 1 00:30:30 1995"]');
INSERT INTO TINTERVAL_TBL (f1)
VALUES ('["Feb 15 1990 12:15:03" "2001-09-23 11:12:13"]');
-- badly formatted tintervals
INSERT INTO TINTERVAL_TBL (f1)
VALUES ('["bad time specifications" ""]');
ERROR: invalid input syntax for type abstime: "bad time specifications"
LINE 2: VALUES ('["bad time specifications" ""]');
^
INSERT INTO TINTERVAL_TBL (f1)
VALUES ('["" "infinity"]');
ERROR: invalid input syntax for type abstime: ""
LINE 2: VALUES ('["" "infinity"]');
^
-- test tinterval operators
SELECT '' AS five, * FROM TINTERVAL_TBL;
five | f1
------+-----------------------------------------------------------------
| ["-infinity" "infinity"]
| ["Sat May 10 23:59:12 1947 PST" "Sun Jan 14 03:14:21 1973 PST"]
| ["Sun Sep 04 23:59:12 1983 PDT" "Tue Oct 04 23:59:12 1983 PDT"]
| ["Wed Dec 31 16:00:00 1969 PST" "Mon May 01 00:30:30 1995 PDT"]
| ["Thu Feb 15 12:15:03 1990 PST" "Sun Sep 23 11:12:13 2001 PDT"]
(5 rows)
-- length ==
SELECT '' AS one, t.*
FROM TINTERVAL_TBL t
WHERE t.f1 #= '@ 1 months';
one | f1
-----+-----------------------------------------------------------------
| ["Sun Sep 04 23:59:12 1983 PDT" "Tue Oct 04 23:59:12 1983 PDT"]
(1 row)
-- length <>
SELECT '' AS three, t.*
FROM TINTERVAL_TBL t
WHERE t.f1 #<> '@ 1 months';
three | f1
-------+-----------------------------------------------------------------
| ["Sat May 10 23:59:12 1947 PST" "Sun Jan 14 03:14:21 1973 PST"]
| ["Wed Dec 31 16:00:00 1969 PST" "Mon May 01 00:30:30 1995 PDT"]
| ["Thu Feb 15 12:15:03 1990 PST" "Sun Sep 23 11:12:13 2001 PDT"]
(3 rows)
-- length <
SELECT '' AS zero, t.*
FROM TINTERVAL_TBL t
WHERE t.f1 #< '@ 1 month';
zero | f1
------+----
(0 rows)
-- length <=
SELECT '' AS one, t.*
FROM TINTERVAL_TBL t
WHERE t.f1 #<= '@ 1 month';
one | f1
-----+-----------------------------------------------------------------
| ["Sun Sep 04 23:59:12 1983 PDT" "Tue Oct 04 23:59:12 1983 PDT"]
(1 row)
-- length >
SELECT '' AS three, t.*
FROM TINTERVAL_TBL t
WHERE t.f1 #> '@ 1 year';
three | f1
-------+-----------------------------------------------------------------
| ["Sat May 10 23:59:12 1947 PST" "Sun Jan 14 03:14:21 1973 PST"]
| ["Wed Dec 31 16:00:00 1969 PST" "Mon May 01 00:30:30 1995 PDT"]
| ["Thu Feb 15 12:15:03 1990 PST" "Sun Sep 23 11:12:13 2001 PDT"]
(3 rows)
-- length >=
SELECT '' AS three, t.*
FROM TINTERVAL_TBL t
WHERE t.f1 #>= '@ 3 years';
three | f1
-------+-----------------------------------------------------------------
| ["Sat May 10 23:59:12 1947 PST" "Sun Jan 14 03:14:21 1973 PST"]
| ["Wed Dec 31 16:00:00 1969 PST" "Mon May 01 00:30:30 1995 PDT"]
| ["Thu Feb 15 12:15:03 1990 PST" "Sun Sep 23 11:12:13 2001 PDT"]
(3 rows)
-- overlaps
SELECT '' AS three, t1.*
FROM TINTERVAL_TBL t1
WHERE t1.f1 &&
tinterval '["Aug 15 14:23:19 1983" "Sep 16 14:23:19 1983"]';
three | f1
-------+-----------------------------------------------------------------
| ["-infinity" "infinity"]
| ["Sun Sep 04 23:59:12 1983 PDT" "Tue Oct 04 23:59:12 1983 PDT"]
| ["Wed Dec 31 16:00:00 1969 PST" "Mon May 01 00:30:30 1995 PDT"]
(3 rows)
SELECT '' AS five, t1.f1, t2.f1
FROM TINTERVAL_TBL t1, TINTERVAL_TBL t2
WHERE t1.f1 && t2.f1 and
t1.f1 = t2.f1
ORDER BY t1.f1, t2.f1;
five | f1 | f1
------+-----------------------------------------------------------------+-----------------------------------------------------------------
| ["-infinity" "infinity"] | ["-infinity" "infinity"]
| ["Sun Sep 04 23:59:12 1983 PDT" "Tue Oct 04 23:59:12 1983 PDT"] | ["Sun Sep 04 23:59:12 1983 PDT" "Tue Oct 04 23:59:12 1983 PDT"]
| ["Thu Feb 15 12:15:03 1990 PST" "Sun Sep 23 11:12:13 2001 PDT"] | ["Thu Feb 15 12:15:03 1990 PST" "Sun Sep 23 11:12:13 2001 PDT"]
| ["Wed Dec 31 16:00:00 1969 PST" "Mon May 01 00:30:30 1995 PDT"] | ["Wed Dec 31 16:00:00 1969 PST" "Mon May 01 00:30:30 1995 PDT"]
| ["Sat May 10 23:59:12 1947 PST" "Sun Jan 14 03:14:21 1973 PST"] | ["Sat May 10 23:59:12 1947 PST" "Sun Jan 14 03:14:21 1973 PST"]
(5 rows)
SELECT '' AS fourteen, t1.f1 AS interval1, t2.f1 AS interval2
FROM TINTERVAL_TBL t1, TINTERVAL_TBL t2
WHERE t1.f1 && t2.f1 and not t1.f1 = t2.f1
ORDER BY interval1, interval2;
fourteen | interval1 | interval2
----------+-----------------------------------------------------------------+-----------------------------------------------------------------
| ["-infinity" "infinity"] | ["Sun Sep 04 23:59:12 1983 PDT" "Tue Oct 04 23:59:12 1983 PDT"]
| ["-infinity" "infinity"] | ["Thu Feb 15 12:15:03 1990 PST" "Sun Sep 23 11:12:13 2001 PDT"]
| ["-infinity" "infinity"] | ["Wed Dec 31 16:00:00 1969 PST" "Mon May 01 00:30:30 1995 PDT"]
| ["-infinity" "infinity"] | ["Sat May 10 23:59:12 1947 PST" "Sun Jan 14 03:14:21 1973 PST"]
| ["Sun Sep 04 23:59:12 1983 PDT" "Tue Oct 04 23:59:12 1983 PDT"] | ["-infinity" "infinity"]
| ["Sun Sep 04 23:59:12 1983 PDT" "Tue Oct 04 23:59:12 1983 PDT"] | ["Wed Dec 31 16:00:00 1969 PST" "Mon May 01 00:30:30 1995 PDT"]
| ["Thu Feb 15 12:15:03 1990 PST" "Sun Sep 23 11:12:13 2001 PDT"] | ["-infinity" "infinity"]
| ["Thu Feb 15 12:15:03 1990 PST" "Sun Sep 23 11:12:13 2001 PDT"] | ["Wed Dec 31 16:00:00 1969 PST" "Mon May 01 00:30:30 1995 PDT"]
| ["Wed Dec 31 16:00:00 1969 PST" "Mon May 01 00:30:30 1995 PDT"] | ["-infinity" "infinity"]
| ["Wed Dec 31 16:00:00 1969 PST" "Mon May 01 00:30:30 1995 PDT"] | ["Sun Sep 04 23:59:12 1983 PDT" "Tue Oct 04 23:59:12 1983 PDT"]
| ["Wed Dec 31 16:00:00 1969 PST" "Mon May 01 00:30:30 1995 PDT"] | ["Thu Feb 15 12:15:03 1990 PST" "Sun Sep 23 11:12:13 2001 PDT"]
| ["Wed Dec 31 16:00:00 1969 PST" "Mon May 01 00:30:30 1995 PDT"] | ["Sat May 10 23:59:12 1947 PST" "Sun Jan 14 03:14:21 1973 PST"]
| ["Sat May 10 23:59:12 1947 PST" "Sun Jan 14 03:14:21 1973 PST"] | ["-infinity" "infinity"]
| ["Sat May 10 23:59:12 1947 PST" "Sun Jan 14 03:14:21 1973 PST"] | ["Wed Dec 31 16:00:00 1969 PST" "Mon May 01 00:30:30 1995 PDT"]
(14 rows)
-- contains
SELECT '' AS five, t1.f1
FROM TINTERVAL_TBL t1
WHERE not t1.f1 <<
tinterval '["Aug 15 14:23:19 1980" "Sep 16 14:23:19 1990"]'
ORDER BY t1.f1;
five | f1
------+-----------------------------------------------------------------
| ["Sun Sep 04 23:59:12 1983 PDT" "Tue Oct 04 23:59:12 1983 PDT"]
| ["Thu Feb 15 12:15:03 1990 PST" "Sun Sep 23 11:12:13 2001 PDT"]
| ["Sat May 10 23:59:12 1947 PST" "Sun Jan 14 03:14:21 1973 PST"]
(3 rows)
-- make time interval
SELECT '' AS three, t1.f1
FROM TINTERVAL_TBL t1
WHERE t1.f1 &&
(abstime 'Aug 15 14:23:19 1983' <#>
abstime 'Sep 16 14:23:19 1983')
ORDER BY t1.f1;
three | f1
-------+-----------------------------------------------------------------
| ["-infinity" "infinity"]
| ["Sun Sep 04 23:59:12 1983 PDT" "Tue Oct 04 23:59:12 1983 PDT"]
| ["Wed Dec 31 16:00:00 1969 PST" "Mon May 01 00:30:30 1995 PDT"]
(3 rows)
|
